Where does the term "a run for his money" originate from?

Can anyone tell me how to say he likes to run I know the signs, but in what order do you put them?

I need a really brief summary on the "origin of international law" for a legal studies assessment. Help please.

in slang if someone were to say im money modivated? i dont get it?

Where did hardstyle shuffling originate? just curious to know becasue I see people frm london and people that look chinese?

What's the origin of this city name "Kader" in Iowa ?

where do mooses originate from? random question but yea...

I'm curious as to terms. Do you use message or sms in your Country, also what about airtime - what would you call it? Appare...

Run (slowly) and read a booklet is it possible

does the mail run today???

Polygamy( I think that's how it's spelled...) and beastality? Thanks..