Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Spot the cat in the picture below

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?