What occurs twice in a week, once in a year but never in a day?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Find the missing number in the sequence below:

A thief is convicted in Mexico. He gets the death penalty. The judge allows him to say the last sentence to determine how the penalty will be carried out. If the thief lies, he will be hanged, if he speaks the truth he will be beheaded. The thief tells the last sentence and to everybody's surprise some minutes later he is set free because the judge cannot determine his penalty. What did the thief say?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

Can you make a fire with just a single stick?

You can see three almost identical images below. Can you spot the odd one out from them?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?