I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

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

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

One night, a woman receives a call from the police. They tell her that her husband was murdered and that she should come to the crime scene as soon as possible. The woman drops the phone, shocked, and drives 20 minutes to the crime scene. As soon as she reaches the crime scene, the police arrest her and she is convicted of murder. How do the police know she committed the crime?

What can you serve, but never eat?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I have feet, but no legs. Which animal Am I?

Spot what is wrong here in below Picture?