Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

Why do you find that most of the buildings are deprived of the 13th floor?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

What word is pronounced the same if you take away four of its five letters?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

What has many teeth, but cannot bite?

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

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