Why Aeroplane windows are round?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

What kind of tree can you carry in your hand?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

You are playing as white and given four rooks to checkmate the black king in four moves with the following rules 1. You can place one rook every move and ensure the black king should be in check position.2. After four moves the black king should be in the checkmate position.

Why is the longest human nose just 11 inches?

Which is the rope you never skip with?