By what process could you make a 'Tea-Table' into food?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

What has a bottom at the top?

What famous saying does this rebus mean?

COME SERVED <---
COME SERVED
COME SERVED
COME SERVED
COME SERVED

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?