How can you tell a raw egg from a hard-boiled egg?

During which month do people sleep the least?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Which is faster, Heat or Cold ? Explain.

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

What two things can you never eat for breakfast?