I am a Ukrainian and I love my place!
1. Is Ukraine safe for foreigners?
Of course! But don't carry coals to Newcastle. Be tolerant of Ukrainian citizens, our culture, and traditions.
2. Are Ukrainians are racists?
Intelligent adults aren't racists. But sometimes you can meet people or teenagers with their hang-ups.
3. How is the living cost in Ukraine
It is relatively cheap to live in Ukraine. The price is starting from 10 dollars per day. In the capital and big cities it can be more.
4. Are there part time jobs for international students in Ukraine?
If you know the Ukrainian language, at least can understand and explain smth, you can find a suitable job for you.
5. Is it difficult to find part time jobs without knowing their language?
Yes, it is more difficult. But everything depends on you.
It's not safe at all. Read the news about kidnapping the bitcoint holders in Kiev and Odessa first. If it's not enough I can continue.
I don't believe that in your place it is safe everywhere. In Ukraine as in other countries, there are good people as well as bad. And you can find troubles everywhere.