Shadow.

Yesterday.

Answered A, B and C or 40, 27 and 85 is correct.

The letter "E".

If they're square it's possible for the cover to slip down the hole (diagonally). A round manhole cannot fall down no matter which way it is rotated because it's width in any direction is greater than the opening on the hole.

A clock.

One of average intelligence finds three of them. If you spotted four, you're above average. If you got five, you can turn your nose at most anybody. If you caught six, you are a genius. There is no catch. Many people forget the "of"s. The human brain tends to see them as V's and not F's.

False. Some cogs may be pabs, but not definitely all of them.

Chicken.

Makeup.

Carpet 'Car' and 'pet'.

A cloud.