Both are a play on words.
She thought she was a dromedary.
Her coach was a pumpkin
Ten. (Shame this one doesn't work too well for reddit - the funniest part of this joke is the third punchline enjoying people struggle to understand what the hell you're talking about.)
Soak it in petrol and put a match to it. (This is a joke, not and instruction, Reddit)
Take my word for it.
A pun is a play on words, while Cliff's notes are a word on plays
A Thesaurus.
Thesaurus.