Collection of coins (Bartley Green B32)

Any numismatics out there?
I found this box of coins that I no longer need. When I've returned from a trip abroad I've put my lose change in. Most of the countries that I've labelled now use the euro so these coins are no longer legal currency. There are a few from the US and Canada that may still be. The ones from England are mostly pre decimal.
You never know there might be a coin that's rare and worth a few bob but I haven't got the time to look up the value of every coin.
And why do the Danish coins have a hole in?

Fair Chance Policy: I’ll wait before choosing a recipient to give more people a chance to reply.