When it's bad luck to meet a black cat?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

How is a fly different from a mosquito?

On a beautiful Sunday morning, You ordered a hot tea to your hotel room and suddenly you remember an important thing that needed to be done right now will take around 3 minutes to complete.
Like most people you like your tea to be hot while drinking so, when should you pour cream in the tea?
1. straight away
2. Just people, you drink the team
3. Its does not matter

Prove that twice of ten is the same as twice of eleven.

Can you Find and name the hidden bird in the picture below ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?