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?