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

O T T F F S S ?

Count the number of lines in the image below ?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

I can write cow in 13 letters.

Can You?

I always drive my customer away.

Who am I?