brains

n. the person(s) in charge of thinking something through. John is not what I would call the brains of the gang.

Name	Pronounced	Usage
Frode	-	Danish, Norwegian
Hildefons	-	Ancient Germanic
Maia (2)	MAY-ə (English), MIE-ə (English)	Roman Mythology
Shamus	SHAY-mus	Irish
Ovadia	-	Hebrew
Miltiades	-	Ancient Greek