There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

A sundial has the fewest moving parts of any timepiece. Which has the most?

What number divided by 4 is the same as that number minus 4?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

A number with an interesting property:

When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 2.
When I divide it by 4, the remainder is 3.
When I divide it by 5, the remainder is 4.
When I divide it by 6, the remainder is 5.
When I divide it by 7, the remainder is 6.
When I divide it by 8, the remainder is 7.
When I divide it by 9, the remainder is 8.
When I divide it by 10, the remainder is 9.

It's not a small number, but it's not really big, either.
When I looked for a smaller number with this property I couldn't find one.

Can you find it?

Can you write down eight eights so that they add up to one thousand?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

Find the number of squares in the below picture