How many sides does a circle have?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

John was piloting a plane behind a car but was never able to overtake it. Why?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

How many times can you subtract the number two from the number fifty?