What famous saying does this rebus mean?

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

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.