In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

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

Count the number of lines in the image below ?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

Take away the whole and some still remain. What is it?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

What happened when the wheel was invented?

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?