Solution:

No it does not collapse.

It has driven a half kilometers - you would subtract the gas used from the total weight of the bus

Solution:

They use the bricks and dirt from the tunnel to stand on it.

Solution:

The Stars

Solution:

NONE, holes are empty.

Solution:

Since the knife was in her hand which implies that she was planning to kill her husband "Inspector Montalbano".

Solution:

They were playing tennis.

Tiger Phil
30 - 30
40 - 30 (Phil hit a bad shot)
Game won - 30 (Tiger hit an awesome shot)

Solution:

The driver is actually the wife and mother.

Solution:

Ganpat had a black suit and a brown suit.
Harish had a brown suit and a pink suit.
Manoj had a white suit and a black suit.
Tarun had a pink suit and a white suit.

Solution:

Six.

There are only five colors, so six socks guarantee that two will be the same color.

Solution:

-3 -1 1

Explanation:
-3 * 1 * -1 = 3(prime)
-1 - (-3) = 1 -(-1) = 2

Solution:

The women is a of short stature. She can't reach the upper elevator buttons, but can push is with his umbrella.