What has no start, end, or centre?

Can you guess the name of the month by looking the below rebus ?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

If 21x = 79x, what is the value of x?

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?

Can you spot the hidden girl in the picture below?

Prove that the below maths equation is true.

8 + 8 = 91

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?

Move three sticks of the spiral below to form a square.