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?

Why 1729 is a magic number? Answer Logically.

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Count the Triangle in the figure given below:

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

What occurs twice in a week, once in a year but never in a day?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

Which letter of the alphabet has the most water?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?