Can you fill the blank with the correct number?

6 30 870 756030 _____

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

I always drive my customer away.

Who am I?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Find the last number in the series below:

voN luJ yaM raM ---

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

What does below rebus means ?