Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Why are all black people so quick ?

Rearrange the letters in "new door" to make one word.

What runs around the whole yard without moving?

Look at the picture and find out which square is not linked with any of the other squares.

A man was just doing his job when his suit was torn. Why did he die three minutes later?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?