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

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

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?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

Find the next number in the following series:
6, 14, 26, 98, __?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.