No, that was yesterday

A: Look at your face I know what you had for breakfast
B: What was it?
A: Eggs.
B: No, that was yesterday.

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A: Why are all those people running?
B: They are running a race to get a cup.
A: Who will get the cup?
B: The person who wins.
A: Then why are all the others running?

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Patient: Doctor, I think that I’ve been bitten by a vampire.
Doctor: Drink this glass of water.
Patient: Will it make me better?
Doctor: No, I but I’ll be able to see if your neck leaks.