What number should come in place of the question mark below?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

What is the longest word in the dictionary?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Name a key which is hardest to turn.

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?