Identify the hidden meaning behind this picture?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

What word does this rebus represent?

meta meta
meta meta

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Spot 5 differences in two Christmas tree below:

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?