1.  How many times in a day, are the hands of a clock in straight line but opposite in direction?
A. 20
B. 22
C. 24
D. 48

Answer: Option B

Explanation:

The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours. (Because between 5 and 7 they point in opposite directions at 6 o'clcok only).

So, in a day, the hands point in the opposite directions 22 times.