TWENTY DONE. Although twenty could do with some refactoring
Test Twenty answer massively refactored
Test 21: Time to swap to numbers
Test 22: DONE
Test 23: Nice and quick
Test 24: Passing
Twenty Fives tests done and passing. Woop
Test 26 speedily dispatched
Test 27 similarly speedily dispatched
Test 28: Beautiful dates
Test 29: Getting domain name from email