Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

If two's company, and three's a crowd, then whats four and five ?

It is always ahead of me yet I can never see it. What is it?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()