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?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Can you name four days which start with the letter 'T'?

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

ITIT,NCENTCENT

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

What is the next number in the series?

15 29 56 108 208 ?

Can you find the thief by just looking at the picture below?

A father's child, a mother's child, yet no one's son.

Who am I?

Using eight eights and addition only, can you make 1000?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?