If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Count the number of triangles in the picture below:

An ape is trying to climb on a pole that is 60 feet high. Due to the slippery surface, the ape climbs 3 feet in a minute only to slip back 2 feet.

How much time do you think the monkey will take to reach the top of the pole?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

Find out the number of circles in the given picture having Illusion

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

What number should come in place of the question mark below?

Can you count the number of squares in the figure below?