1. Who is the tallest basketball player in the world?
2. What do the opposite sides of a dice add up to?
3. How long is a round in boxing?
4. What's the highest score in a gymnastics exercise?
5. How many eyes are there on a pack of 52 cards?
6. How many coloured balls are there in billiards?
7. How many players are there in a basketball team?
8. How many lanes does an olympic swimming pool have?
9. How many squares are there on a chess board?
10. Who starts first in chess?