A blonde, a brunette and a redhead went into a bar and asked the bartender:
Brunette:
"I'll have a B and C."
Bartender:
"What is a B and C?".
Brunette:
"Bourbon and Coke."
Redhead:
"And, I'll have a G and T."
Bartender:
"What's a G and T?"
Redhead:
"Gin and tonic."
Blonde:
"I'll have a 15."
Bartender:
"What's a 15?"
Blonde:
"7 and 7"