How many luggages and what is the total weight in Lufthansa airlines from the US to Central Asia?

I flying from US to Central Asia, and not sure what is the amount of luggages and how many kg I can take with me?

This page should answer your questions.

This will depend on what class you are travelling in. Most airlines only allow 20kgs in economy class and 30kgs in business class. I personally would check with the airline.