If you're a birdbrain you're passionate about birds.
no
If you pick someone's brain you obtain ideas or information from another person.
yes
If something is a no-brainer there's no answer to it
no
If you're BRAINS BEHIND SOMETHING you plan and organize something
yes
If you have a BRAIN LIKE A SIEVE you have a bad memory and you often forget things
yes
If you're ALL BRAWN BUT NO BRAIN you are weak physically but very intelligent
no
If you RACK YOUR BRAIN you try to relax and not think too much
no
If you HAVE SOMETHING ON THE BRAIN you can't stop thinking about something
yes
If you're BRAIN DEAD it means you're extremely tired
yes
If you BEAT YOUR BRAINS OUT you think about something very hard and find a solution very quickly
NO
If you have a BRAINSTORM session you come up with lots of ideas/solutions
yes
