Ok, I'm enjoying this thread.

How many cubic metres of dirt are there in a hole 3 metres wide, 3 metres
long and 2.5 metres deep?

It's a hole!!!  No dirt in it at all!  Wai!!  Mihoshi is good, ne??  ^^;
*********
* Mihoshi@Where did this pit come from?  Wai!  Mihoshi trapped!