A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

The King of a distant land had heard that Birbal was one of the wisest men in the East and so desired to meet Birbal. He sent Birbal an invitation to visit his country.

In due course, Birbal arrived in the distant kingdom. When he entered the palace he was flabbergasted to find not one but six kings seated there. All looked alike. All were dressed in kingly robes. Who was the real king?

The very next moment he got his answer. Confidently, he approached the king and bowed to him.

How did Birbal know who was the real king?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Our product and our sum always give the same answer. Who are we?

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?

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

The more you take me, the more you leave me behind.
Who Am I?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?