The Streets of Helsinki

Here are two questions, probably not very much fun for people who are not familiar with Helsinki.

Three streets of Helsinki have been named alias to a European capital. Which are these? (Name streets or capitals).
How many streets of Helsinki go across Mannerheimintie (the major route from downtown Helsinki to the north)? Name them.

You have to know Helsinki somewhat to understand the jokes. It's trivial if you have a map, so if you spoil it by using one, it's your fault.

Think it over!

Then check the answer here.

Published in Njet Problem! collection 1996-01-22.