Scrubs2001

The Janitor:
Hey! We solved your dumb game.

Troy:
We been to the libary!

The Janitor:
-brary... Troy! Library! Anyway, what two coins, when you put 'em together, make 30 cents and one of them isn't a nickel? Uhm... A penny and a 1972 dime with a Roosevelt imperfection, today worth exactly 29 cents.

Dr. John 'J.D.' Dorian:
No, no no. The correct answer is a quarter and a nickel.

The Janitor:
Uhm, no, because you said one of them isn't a nickel.

Dr. John 'J.D.' Dorian:
Right. The other one is.

The Janitor:
You lied to me.

Dr. John 'J.D.' Dorian:
No. It's a riddle. [leaves]

Troy:
[to the Janitor] Uh, your face is red like a strawberry!

The Janitor:
...Don't have kids.