75 Birthday Trivia Questions and Answers for Parties

These birthday trivia questions cover calendar facts, party traditions, birthstones, zodiac signs, questions for children, challenges for adults and a personal round about the birthday person. Every factual question includes an answer. For the personal round, ask the celebrant for their responses before the party so you have an answer key.

How to choose birthday trivia questions

Choose the questions according to your guests. Children need familiar words, short questions and simple answers. Adults can handle harder calendar facts, milestone-birthday maths and questions that require closer attention. A mixed-age party works best when each round contains several easy points and one or two harder questions.

Questions about the birthday girl, birthday boy or celebrant make the game personal, but the host must prepare those answers in advance. For an extra round, use the random birthday generator to produce a date, then ask guests to identify its month, season, birthstone or zodiac sign.

General birthday trivia questions and answers

Start with these general birthday trivia questions. They suit family parties, classrooms, team games and mixed-age groups.

1. What does a birthday mark? Answer: The anniversary of a person’s birth.
2. How many years are in a decade? Answer: 10 years.
3. How many years are in a century? Answer: 100 years.
4. What is a person who has reached the age of 100 called? Answer: A centenarian.
5. What is a golden birthday? Answer: The birthday when a person’s age matches the day of the month on which they were born. Someone born on the 18th has a golden birthday when turning 18.
6. What is a half birthday? Answer: A date approximately six months before or after a person’s birthday.
7. At what age does a person have their first double-digit birthday? Answer: 10.
8. Which ages are normally described as the teenage years? Answer: Ages 13 through 19.
9. What is a birthstone? Answer: A gemstone traditionally associated with a person’s birth month.
10. How many signs are in the Western zodiac? Answer: 12 signs.
11. What information should a birthday party invitation normally include? Answer: The date, time, location and a way to respond to the invitation.
12. What does RSVP ask an invited guest to do? Answer: Reply to the invitation. RSVP comes from the French phrase répondez s’il vous plaît, meaning “please respond.”
13. What is a party favor? Answer: A small gift given to guests at a party.
14. What makes a surprise birthday party a surprise? Answer: The celebration is planned without telling the birthday person beforehand.
15. What is a milestone birthday? Answer: A birthday associated with a notable age or life stage, such as 18, 21, 50 or 100. The ages considered milestones vary by culture and law.

Birthday calendar and leap-year trivia

Calendar questions work well as a quick-fire round. Leap years keep the calendar aligned with Earth’s orbit, as explained in this NASA guide to leap years.

16. How many months are in a calendar year? Answer: 12 months.
17. How many days are in a common year? Answer: 365 days.
18. How many days are in a leap year? Answer: 366 days.
19. Which date is added during a leap year? Answer: February 29.
20. How often does a leap year usually occur? Answer: Every four years, with exceptions for some century years.
21. Why was 2000 a leap year even though it was a century year? Answer: Century years remain leap years when they are divisible by 400.
22. Which month has the fewest days? Answer: February.
23. How many months have 31 days? Answer: Seven: January, March, May, July, August, October and December.
24. How many complete weeks and extra days are in a common year? Answer: 52 complete weeks and one extra day.
25. Does a person born on February 29 age only during leap years? Answer: No. The person becomes one year older every year even though February 29 appears only in leap years.

Cake, candles and birthday party trivia

26. What do candles on a birthday cake commonly represent? Answer: The birthday person’s age, although families may use number candles or other arrangements.
27. What do people commonly do before blowing out birthday candles? Answer: Make a wish.
28. What is the title of the song commonly sung before a birthday cake is cut? Answer: “Happy Birthday to You.”
29. What colorful paper pieces are sometimes thrown during a celebration? Answer: Confetti.
30. What decorated container is traditionally broken to release sweets or small gifts at some parties? Answer: A piñata.
31. What is used to hide a gift before it is opened? Answer: Wrapping paper, a gift bag or another type of packaging.
32. What written item normally contains a birthday greeting? Answer: A birthday card.
33. If 20 guests each receive one cupcake, how many cupcakes are needed? Answer: 20 cupcakes.
34. A cake is cut into 16 equal pieces and 12 are served. How many pieces remain? Answer: Four pieces.
35. If a person uses one candle for every decade on a 60th birthday cake, how many candles are needed? Answer: Six candles.

Birthday zodiac and birthstone questions

The zodiac belongs to astrology, so it should be presented as a traditional astrological system rather than scientific evidence about personality. Date ranges can differ slightly between sources, particularly for birthdays near a cusp. See the Britannica overview of the zodiac and the GIA birthstone guide for reference.

36. Which zodiac sign is normally associated with a birthday on April 10? Answer: Aries.
37. Which zodiac sign is normally associated with a birthday on July 10? Answer: Cancer.
38. Which zodiac sign is normally associated with a birthday on September 10? Answer: Virgo.
39. Which zodiac sign is normally associated with a birthday on November 5? Answer: Scorpio.
40. Which zodiac sign is normally associated with a birthday on February 10? Answer: Aquarius.
41. What is January’s traditional birthstone? Answer: Garnet.
42. What is April’s traditional birthstone? Answer: Diamond.
43. What is May’s traditional birthstone? Answer: Emerald.
44. What is July’s traditional birthstone? Answer: Ruby.
45. What is September’s traditional birthstone? Answer: Sapphire.

Easy birthday trivia questions for kids

These easy birthday trivia questions use simple party words and basic maths. Read them aloud or add them to a classroom quiz.

46. What do you say to someone on their birthday? Answer: “Happy birthday!”
47. What party decoration is filled with air or helium? Answer: A balloon.
48. What sweet baked food is often served with candles on top? Answer: A birthday cake.
49. What cone-shaped item may be worn on the head at a birthday party? Answer: A party hat.
50. If you have eight balloons and receive two more, how many balloons do you have? Answer: 10 balloons.
51. There are 12 candles on a cake and three go out. How many remain lit? Answer: Nine candles.
52. Six guests each receive two cupcakes. How many cupcakes are served? Answer: 12 cupcakes.
53. Which month comes immediately after June? Answer: July.
54. How many days are in one week? Answer: Seven days.
55. How many hours are in one day? Answer: 24 hours.

Funny birthday trivia questions for adults

These adult birthday trivia questions use milestone ages and light party maths. The humour stays friendly, so they also work for coworkers and extended family.

56. How many full decades has someone completed on their 40th birthday? Answer: Four decades.
57. Which birthday marks half a century? Answer: The 50th birthday.
58. How many decades has someone completed when turning 60? Answer: Six decades.
59. What fraction of a century is 75 years? Answer: Three quarters of a century.
60. Can twins have different birthdays? Answer: Yes. Twins born on opposite sides of midnight can have different calendar birthdays.
61. If the birthday person turns 45 and uses one candle for every year, how many candles are required? Answer: 45 candles, plus a cake large enough to hold them.
62. A party starts at 7:30 p.m. and lasts two hours. When does it finish? Answer: 9:30 p.m.
63. Five trivia teams have eight players each. How many people are playing? Answer: 40 people.
64. The host prepares 60 cake slices for 48 guests. How many slices are left if everyone takes one? Answer: 12 slices.
65. If the celebrant says they are turning 29 again, which answer keeps the party peaceful? Answer: “Happy 29th birthday!” This one is a joke, not a maths question.

Who knows the birthday person best?

These personal birthday trivia questions do not have universal answers. Ask the birthday person to complete the answer key privately before guests arrive. You can use the same questions for a birthday girl, birthday boy, best friend, parent, partner or coworker.

66. What is the birthday person’s favorite cake flavor? Answer: Set by the birthday person before the game.
67. What is their favorite birthday memory? Answer: Set by the birthday person before the game.
68. What is the best birthday gift they have received? Answer: Set by the birthday person before the game.
69. Where would they choose to spend their dream birthday? Answer: Set by the birthday person before the game.
70. Would they prefer a large party or a quiet celebration? Answer: Set by the birthday person before the game.
71. Which birthday tradition do they enjoy most? Answer: Set by the birthday person before the game.
72. What party food would they choose first? Answer: Set by the birthday person before the game.
73. Which song would they put at the top of their birthday playlist? Answer: Set by the birthday person before the game.
74. Who would be first on their ideal birthday guest list? Answer: Set by the birthday person before the game.
75. What is one thing they hope to do before their next birthday? Answer: Set by the birthday person before the game.

How to play a birthday trivia game

1. Select the questions. Choose 15 to 25 questions that suit the ages and interests of your guests.
2. Prepare the answer key. Record every factual answer and collect the celebrant’s personal answers in advance.
3. Choose teams or individuals. Teams work well for large or mixed-age groups. Individual play suits smaller parties.
4. Set a time limit. Allow about 20 to 30 seconds for an ordinary question and longer for calculations.
5. Score the answers. Award one point for each correct answer. Decide beforehand whether close answers receive a point.
6. Finish with a tie-breaker. Use one final question or ask players to estimate a number, such as the combined age of everyone in the room.

Printed answer sheets are easy to manage at a table. A slideshow works for larger rooms, while Kahoot can handle phones and automatic scoring. During a virtual birthday party, share one question at a time and ask participants to submit answers in the chat or through an online quiz.

Adapting the quiz for milestone birthdays

• First birthday: Ask parents and relatives about the child’s first year, favorite food, first word or birth details. Adults should provide the answers.
• 18th birthday: Mix childhood memories, school moments, favorite entertainment and plans for adulthood.
• 40th or 50th birthday: Use music, films and events from the person’s childhood, but verify every factual answer.
• 60th or 70th birthday: Include family memories, former workplaces, travel, hobbies and stories that guests can answer without exposing private information.
• 80th or 90th birthday: Use large text, read questions aloud and allow teams to discuss answers. Avoid questions that test memory in a way that could embarrass the celebrant.

Frequently asked questions

Choose the birthday trivia questions that fit your guests, prepare the personal answers before the party and keep one calendar question ready for a tie-breaker. A balanced quiz gives children, adults and close friends a fair chance to score.