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.

What does this Rebus Picture means ?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

If 21x = 79x, what is the value of x?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?