Not the main Batman, definitely, but maybe Lego Batman.

It's the British version of "Whose Line Is It Anyways?"

The default Twitter icon is an egg, or at least something that looks exactly like one.

She's censoring out the word "ass" inside of "pASSword."

Since the prompt was in English, it's assumed that the student was supposed to write the fake letter in English as well, but they took it further and wrote it in Chinese.

I think the constantly changing light and low quality of the .gif is just giving that effect.

He asked the girl out, and she rejected him, and since she bet 10$ that the person he asked out would say yes (but she was asked out and she said no,) she owes him 10$.

I think that's kinda just how 4chan is.

https://en.wikipedia.org/wiki/Cougar_(slang)

No problem!

His father married his wife's daughter; therefore, the daughter can be considered his mother-in-law, which means that her mother (who is his wife) is his grandmother.

Considering that "Oh God! Oh God!" is something one might shout during sex, an atheist having sex wouldn't shout about God (due to them not believing in God) so instead they replace it with "I'm an atheist!"

Yep, in the Paradox Space comics.

If you remove the U (take U/you out) from "Laura," you get "Lara."