How many times in a given day, minutes and hour clock comes in a straight line ?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

What does a man do only once in his lifetime, but women do once a year after they are 29?

What always comes into a house through the keyhole?

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?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

Can you solve this picture maths equation?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?