What word is pronounced the same if you take away four of its five letters?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

Prove that twice of ten is the same as twice of eleven.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?