I am quite hot but become too cold if you remove the first two letters. What am I?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

Replace the question mark with the correct number in below Picture:

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Where do you go to learn how to make ice cream?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Can you spot the man between the coffee bean in the picture below ?