How can you drop a raw egg from a height onto a concrete floor without cracking it?

Which is faster, Heat or Cold ? Explain.

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

Count the Triangle in the figure given below:

What do you get if you add 2 to 100 four times?

Can you solve the photo plexer logic ?

Count the number of triangles in the given picture.

What happened when the wheel was invented?