How is the moon similar to a dollar?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

What is at the end of a rainbow?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

Why is the longest human nose just 11 inches?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

What does it mean?

Decode the below four famous ciphers:

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

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?