I travel all around the world but always stay in the corner. What am I?

If 21x = 79x, what is the value of x?

In an Art Gallary, When the clock hit 11 am, Artist hung the painting number 30. When it struck 4 pm, he hung painting number 240 and when it struck 7:30 pm, he hung painting number 315.

Can you determine, which painting number will he hang when the time is 9:20 pm?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

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

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

How can you leave a room with two legs and return with six legs?

I make two people out of one. What am I?

Can you identify the hidden rebus in the image below?