astute businessman

IQ a brain box a bright spark a clever boots a clever clogs a penetrating mind a quick study a smart alec a smart bomb a smart-arse a smart-ass a smarty pants a smooth, clever, etc. operator apt be all brawn and no brains

الحكمة وحسن التقدير الغباء والحماقة الذكاء وحدة الذهن