What is both possible and impossible at the same time?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

If you say my name, I will no longer exist. What am I?

By moving just one matchstick, you need to make the below statement true. Can you do it?

Can you count the number of triangles in the picture below?

who is silent in the parliament?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

Can you find out the missing number in the grid?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

Decode the below four famous ciphers:

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