What always comes into a house through the keyhole?

Can you find out who is the kidnapper in below Picture and why, Explain ?

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?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

Find the 8 in the below-given Image.

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?