I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

I throw two dice simultaneously.

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

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Three people check into a hotel. They pay $60 for the rent of the room. After they check-in, the manager realize that the rent for the room is $55. So, he gives $5 to the bellboy and asks him to give it to them. The bellboy thinks that it will be difficult for the three people to share $5 among them and seeking the personal benefit, he pockets $2 and gives the remaining $3 to them.

Now, each person paid $20 and got back $1. In this manner, each of them paid just $19 which totals to the amount of $57. The bellboy has $2 with him and adding them, we get $59. So where is the remaining $1?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

If 1+9+8=1, what is 2+8+9?

If eleven plus two equals one, what does nine plus five equal?

How many triangles can you find in this given picture?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

If it took eight men ten hours to build a wall, how long would it take four men to build it?