What does this Rebus Picture mean?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

The cream is heavier than Milk. True or False?

Decode this picture on T-Shirt and tell what it says ?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

How many times can you subtract the number 5 from 25?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

Find the next number in the series.
1 10 24 43 67 ?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

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