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

Can you divide the below-given shape into four equal and identical pieces?

I am the fastest animal but cannot climb the tree. What am I?

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?