You really got a bunch of good ideas and so many amazing entries!

Here is my take on the acronym:
SBI - Sexy beasts incorporated
SBI - Super brainy individuals
SBI - Strong brains illuminated
SBI - Soul, body, intellect

My take on the photo phrase:"From Istria with love"

My take on the brain boggle:
"What flies and has no wings and when lost, could never be found again?"

And my take on the happy thing:
Just click HERE and find happiness ;)