What Time Should the last watch show in the below figure?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

The centre of the third figure is empty. What digit should fit inside?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

What word is represented by this rebus?

What has no start, end, or centre?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?