Open

How did you get here? Did someone leave your cage open?
Your brain's so minute that if a hungry cannibal cracked your head open, there wouldn't be enough to cover a small water biscuit.

(From tv show Blackadder)
What key can’t open doors no matter how hard you try?

Turkey.
What did the astronaut’s fiancé say when he proposed to her in open outer space? She said, “I can’t breathe!”
What key has legs and can't open doors? A Turkey.
What did the boy without hands get for his birthday?
Nobody knows, he hasn't got the package open yet.
Why does a penis have a hole in the end? So men can be open minded.
What are a married man's two greatest assets? A closed mouth and an open wallet.
How many men does it take to open a beer? none. the lady should already have it open on the table!
Why is the pickle container always open?
Because it's ajar.
I've been trying to sleep with one eye open lately, but it's really hard
Last night I couldn't sleep a wink
Hope you’re wide open on [date].
Knock Knock
Who's there?
Donut
Donut who?
Donut open til Christmas!
What do you call a group of chess players bragging about how they won in a hotel lobby?
Chess nuts boasting in an open foyer.
What did the boy without hands get for his birthday?
Nobody knows, he hasn't got the package open yet.