I have teeth but i don't bite. Who Am I ?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

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

What is the word or phrase?

Whats the next number in the below number sequence pattern.

What does this rebus mean?

O
N
C
E
TIME

Prove that twice of ten is the same as twice of eleven.

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?

How many letters are in the alphabet?

What's the next in the series?

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