There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

How is a fly different from a mosquito?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

What has one eye, but can’t see?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?