Find the combined weight of the Cat, Dog and Rabbit in the given picture.

How can you write nineteen in a manner that if we take out one, it becomes twenty?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

When it is alive we sing, when it is dead we clap our hands. What is it?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

A father's child, a mother's child, yet no one's son.

Who am I?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.