What does this simple rebus mean?

By what process could you make a 'Tea-Table' into food?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

When it's bad luck to meet a black cat?

You can see three almost identical images below. Can you spot the odd one out from them?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

You need to arrange three 7 and mathematical symbols to form number 1?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

If a wheel has 54 spokes, how many spaces are there between the spokes?