I look at you, you look at me I raise my right, you raise your left. What am I?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

What is black when you buy it, red when you use it, and gray when you throw it away?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

I can be cracked, made, told, and played. What am I?

They are three errirs in this question. Can you find them?

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?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

Which is faster, Heat or Cold ? Explain.