Can you find the key in the picture below?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

What does the below rebus puzzle mean?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

Who always enjoys poor health?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?