About 3 hours.
6 hours
It should take about 4:30 hours
That would depend on traffic, but about 4 hours.
1 hour and 8 minutes
It depends on which part of Dublin to which part of Louth and how you are travelling but by car from the centre of Dublin using the M1 motorway it would only take 30-40 minutes to Drogheda, the first town in Louth.
About 2o hours
There are 857.4 miles between Dublin, Ireland and Munich, Germany. A nonstop fight would take roughly 2 hours 25 minutes.
16 hrs 50 min from Dublin to Bishkek
You can be in Scotland from Dublin by air in less than 40 minutes.
The fastest train ride from Berlin to Krakow takes a bit more than ten hours. Please see the links for planning information.
a while
If you took a bus from Dublin to London you would never get there because you would probably die. You see, Ireland is its own land mass and you can't drive to the United Kingdom. I would suggest you take a geography class prior to traveling.