What has many keys but can’t open a single lock?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

What is the longest word in the dictionary?

When 99 is considered higher than 100?

It is Secret Agent Bond Girl Friend's birthday but he is on a secret mission

Mr Bond has a secret device by which he can only use the below words for sending the message.

Dumbo, Nazi, Carrot, Ronda, Zambia, Racing, TinTin, Seou, Zareeba, Laltain, Saphire, Tar, Orphan, Audition, Biscotti.

Mr Bond sends the following message to her girlfriend:
Carrot Dumbo Nazi Racing Ronda Zambia TinTin Seou Laltain Zareeba Tar Biscotti Orphan Audition Snake

What does Mr. Bond's Message say?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

How many triangles can you find in this given picture?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

I add 5 to 9 and get 2. The answer is correct, so what am I?

What does this mean?

CCCCCCC