Sibling Quiz Questions and Answers: 35 With an Answer Key

Thirty-five sibling quiz questions, built specifically around an answer key — because a sibling quiz without a proper answer key is just a list of things nobody can verify. This is the version with a working format.

Why does the answer key matter more than the questions?

Anyone can write questions. What makes a sibling quiz actually work is having reliable answers collected in advance, so there's no argument mid-game about whether someone's guess "basically counts." Get the answer key sorted first, and the questions become the easy part.

How do you collect the answer key?

1. A day or two before, message each sibling privately (or use a shared form) with the full list of questions.
2. Ask them to answer honestly, about themselves.
3. Whoever's hosting compiles all answers into a single key — kept hidden until quiz time.
4. During the quiz, other siblings guess; the host reveals the real answer after each round.

This avoids the two most common failure modes: someone changing their answer on the spot to seem more interesting, and arguments about what "counts" as correct.

Scoring, kept simple

• One point per correct guess.
• Two points if you correctly guess about a sibling you're not obviously closest to (rewards actually knowing the quieter one, not just the one you talk to daily).
• Ties settled by a tiebreaker question read live, no advance answer key — first correct guess wins.

The 35 questions

Warm-up round (10, low stakes)

1. What's your current job title?
2. What's your go-to comfort food?
3. What's your star sign?
4. What's the last country you visited?
5. What's your coffee or tea order?
6. What's your phone's home screen background?
7. What's your favourite family holiday memory?
8. What's the show you're currently watching?
9. What's your least favourite chore?
10. What's your most-used emoji?

Family history round (13, needs the answer key)

11. What was your first pet's name?
12. What was your childhood bedroom like?
13. What was the family holiday spot you went back to most?
14. What subject were you best at in school?
15. What was your first job?
16. Who was your childhood best friend?
17. What was the nickname the family used for you?
18. What's the family tradition you'd keep if you were in charge?
19. What's the family tradition you'd quietly drop?
20. What's a rule you broke and got away with?
21. What's a rule you broke and got caught?
22. Who do you think was the "favourite" growing up (be honest)?
23. What's the argument you and a parent never fully resolved?

The reveal round (12, the honest stuff)

24. What's something you've never told our parents?
25. What's a decision of a sibling's you've disagreed with but never said?
26. What's a compliment about a sibling you've never said aloud?
27. What's a secret you've kept for a sibling?
28. What's the childhood moment you're still not quite over?
29. What's the family memory you and a sibling remember completely differently?
30. What's something you're proud of that you rarely mention?
31. What's a fear you don't often talk about?
32. What's a way you've changed most in the last five years?
33. What's something you needed growing up that you didn't get?
34. What's the version of your life story you'd tell a stranger?
35. What's one thing you want the rest of the family to know but haven't said?

Running it at a family gathering

Print the questions in three rounds, matching the sections above. Read them out loud one at a time, guessers write their answer, host reveals from the key. Keep the reveal round for after dinner, when everyone's relaxed and nobody's driving home in the next hour.

Want it built for you?

If collecting answer keys by hand sounds like effort, upload your family WhatsApp group chat to WhatsQuiz and it generates questions — and a working answer key — directly from years of real messages. For the tiered version without the scoring mechanics, see how-well-do-you-know-me questions for siblings, or browse the full how-well-do-you-know-me hub.

What should I read next?

• "How well do you know me" questions for siblings — the tiered version, no answer-key logistics.
• Questions to ask your siblings — the conversational, non-quiz version.
• How well do you know your sister? Quiz questions — a sister-specific set to slot into the answer key format.