How many times can you subtract the number 5 from 25?

Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

John was piloting a plane behind a car but was never able to overtake it. Why?

When it is alive we sing, when it is dead we clap our hands. What is it?

What does this simple rebus mean?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

Name a key which is hardest to turn.

What does does this rebus picture means ?