What famous saying does this rebus mean?

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A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Which is the smallest number that you can write using all the vowels exactly once?

Which five letter word can be added at the end of below word to form a
valid word?

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What is in seasons, seconds, centuries and minutes but not in decades, years or days?

What number when divided in half becomes zero?

Why is Saturday stronger than Monday?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?