Where can I learn hindi?

My co-worker's relative has passed way. What should I write in a short email? What are the common English phrases used in this case? Thanks.

You probably guess why I'm asking :)

I got an email today which has this phrase "Yah uchu nimnoshko Ruski.". It's supposed to be in Russian. But google translation couldn't translate it. I guess it's because it's in English alphabet.
Thanks!

My friend gave me a bunch of children's books. One of them is titled "Fiddle-I-Fee". In the book it says "Cat went fiddle-i-fee". Is "fiddle-i-fee" referring to sound? What does this mean? Thanks!