Puzzles - Clock puzzles

10.
Answer
:
6:20
Explanation
:
On each watch, the sum of the digits shown equals 8.

11.
Answer
:
The hour hand points to the 4.
Explanation
:
The sum of the values pointed to by the hands on each clock equals 12.

12.
Answer
:
To the 6
Explanation
:
Starting with the top left clockface and working clockwise around the others, the sum of the numbers pointed to by the 2 hands starts at 3 and increases by 2 each time.