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

O T T F F S S ?

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

Can you find the six hidden animals in the picture below?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

You have 21 jars with you. Out of them, 7 are filled with water, 7 are half-full with water and 7 are empty. How will you distribute the jars among three people such that each one of them gets an equal number of jars and an equal amount of water?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?

Count the squares in the matchstick puzzle below?

Take away the whole and some still remain. What is it?