What is in seasons, seconds, centuries and minutes but not in decades, years or days?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

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

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

What am I?

Identify the hidden meaning behind this picture?

Can you identify if it's a murder or a suicide ?

John is the son of Jacob.
So,
Jacob is the_____of John's father?