What does below rebus means ?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

John was drowned by he was not wet. How?

I am quite hot but become too cold if you remove the first two letters. What am I?

When 99 is considered higher than 100?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

Find the number of squares in the below picture

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

You see me once in June, twice in November, and not at all in May. What am I?