Hint: it's a cube of a cube
of a prime.
The Big Bang Theory Season 12, Episode 23
'Cause I'll give you
a HINT: it's already
The Big Bang Theory Season 12, Episode 21
SHELDON:
Take the HINT, Stuart.
The Big Bang Theory Season 5, Episode 10
Is "back on track" a HINT
that it has something to do with trains?
The Big Bang Theory Season 10, Episode 11
Hint: Sometimes they pack the alcohol
in their trunks.
The Big Bang Theory Season 4, Episode 24