I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

What is wrong in the below Picture?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

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

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

What can you catch but never throw?

Which tank will fill first?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?