Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

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

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

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?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Can you count the number of lines in the below picture?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

2, 3, 5, 9, 17, _ What is the next number in the sequence?