What does this simple rebus mean?

Can you make four (4) nines (9) equal 100?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

What came first, the chicken or the egg?

What is the difference between a jeweller and a jailer?

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

The cream is heavier than Milk. True or False?