What four weights can be used to balance from 1 to 30 pounds?

What does a man do only once in his lifetime, but women do once a year after they are 29?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

What does this rebus means ?

PROG WORKRESS

Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

Which part of London exists in France as well ?

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

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?