The Big Bang Theory Quiz: Did Sheldon Or Leonard Do It?

In The Big Bang Theory, Leonard Hofstadter spends much of his time trying to keep his roommate Sheldon Cooper happy.

Thanks to the roommate agreement he signed when he moved into the apartment, Leonard doesn't have control of many things. He doesn't get to set the thermostat. Sheldon claimed the best space on the couch Leonard purchased. Leonard even needs to keep to the bathroom schedule set out by Sheldon.

Yet despite Leonard's protests, he ultimately cares about Sheldon and always puts his needs first.

Do you know all there is to know about Sheldon Cooper and Leonard Hofstadter? This quiz features 12 things that either Leonard or Sheldon have done, all you need to do is is decide who it was that did it.

Can you remember who was paired with Bernadette in the group's scavenger hunt? Do you know which of the pair had to give Howard a rare comic book after losing a bet?

Only the biggest fans of The Big Bang Theory will be able to score 100% correct in this Sheldon and Leonard quiz. Let's see how many you can answer!

All of the answers to the quiz can be found at the end. Good luck!