Find the missing letter in the last circle logically in the given below picture.

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

I have branches, but no fruit, trunk or leaves. What am I?

The more it dries, the wetter it becomes. Can you tell what it is?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

What part of the chicken has the most feathers?

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?

What does this below rebus puzzle mean?

If you say my name, I will no longer exist. What am I?

What is the fastest way to double your money?