
Which, other than its
surprisingly fun PUZZLE page,
The Big Bang Theory Season 7, Episode 17

New PUZZLE, Ma!
The Big Bang Theory Season 4, Episode 19

Your next PUZZLE is a riddle.
The Big Bang Theory Season 7, Episode 3

The first PUZZLE is a PUZZLE!
The Big Bang Theory Season 7, Episode 3

Not the cube, but the PUZZLE of
why I couldn't solve the cube.
The Big Bang Theory Season 12, Episode 19