Can you find out the missing number in the grid?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Next Number in the Series,

5, 16, 49, 104, ?

Why do people go to bed?

In the image below, can you find the value of an angle(y)

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

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?

Can you find the thief by just looking at the picture below?

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?