
But we haven't
finished the PUZZLE.
The Big Bang Theory Season 7, Episode 3

I'll just finish my crossword PUZZLE.
The Big Bang Theory Season 1, Episode 1

Get ready to open
your first PUZZLE.
The Big Bang Theory Season 7, Episode 3

each PUZZLE will lead you
The Big Bang Theory Season 7, Episode 3

where the last PUZZLE gives the winner
Sheldon's contact information.
The Big Bang Theory Season 9, Episode 8