What does this mathematical rebus means ?

What does the below image rebus riddle means ?

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

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Mr. Buttons was all set to go to the village of Buttonland to meet his friend. So, he packed his bags and left for the village at 5 in the morning. Upon travelling on a road for miles, he came across a point where the road diverged into two. He was confused on which road to take. He gazed around and he saw two owls sitting on a branch. He thought he could ask for directions for the village from the two owls. So he went to the tree. There he saw a sign which read, "One owl always lies, and one is always truthful. They both fly away if you ask them more than 1 question."
Mr. Buttons was caught in the dilemma of what to ask? And from which owl to ask, since he only had one question. What should Mr. Buttons ask?

I am an odd number. Take away a letter and I become even. What number am I?

How many sides does a circle have?

What does this Rebus Picture means ?

I am white when I am dirty, and black when I am clean. What am I?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1