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.

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

You need to arrange three 7 and mathematical symbols to form number 1?

I have branches, but no fruit, trunk or leaves. What am I?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?