Welcome to English in a Minute.
We have to use our brains to think.
So what does the expression no-brainer mean?
Hey, did you watch the new episode of Catch a Criminal?
Yeah, but it was such a no-brainer.
The police found a gun and all the money in David's house.
Well, what if David has a twin brother who lives with him?
The police would know if David had a twin brother.
Well, what if they don't know?
Then they are really bad at their jobs.
A no-brainer is something that requires little thought or is obvious.
It also means it is easy to make the right choice.
And that's English in a Minute.