The time it takes to get from London, United Kingdom to Prague, Czech Republic by train is anywhere from 13 hours 50 minutes to 18 hours 46 minutes. The total time depends on the stops and how many times you have to change trains.
You can't travel directly from Heathrow to Bristol. The best way is probably to take a bus to Reading and get a train from there or travel into Central London and get a train there.
about 20 h
About 4 hours
About two days
About 2.5 hours
About 35 minutes.
There are no trains from Minnesota to London, England. Train travel is not possible across the Atlantic ocean.
You can't travel directly from Amsterdam to London by ferry because London doesn't have a ferry port. You would have to travel from Amsterdam to Hook of Holland by train (or drive), catch a ferry to Harwich and then take a train (or drive) to London.
The Eurostar train takes around 2 hours and 15 minutes to travel from London to Paris.
I suppose that 50 hours is sufficient.
About 1 hour 30 minutes by train.
Malta is an island in the Mediterranean Sea so you can't travel there by train from anywhere.