What famous saying does this rebus mean?

COME SERVED <---
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You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.

Can you write down eight eights so that they add up to one thousand?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

What does Alexander the Great and Winnie the Pooh have in common?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.