Which wheel of car does not rotate when you turn your car right?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

The centre of the third figure is empty. What digit should fit inside?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Can you find out which options fits best with the missing column?

How could a baby fall out of a twenty-story building onto the ground and live?

Make a sentence consisting of three words that have the whole alphabet.

Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins.

What is the probability that X will win ?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?