Hi, there is a typical interview question.
" There are 3 men and 3 lions on one side of a river. You need to carry them all to the other side, using a single boat that can carry only two entities (human or lions) at a time.
You can't let the lions outnumber the man on either bank of the river because then they'd eat them.
How would you get them across? "
Enjoy it :)