Which is faster, Heat or Cold ? Explain.

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

What does this below rebus puzzle mean?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

Imagine you are in a room with no windows or doors. How will you get out?

What happened when the wheel was invented?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Where do fish keep their money?

How many sides does a circle have?