Misc: What satellite series name was Russian for 'fellow traveller'?

Questions

What city saw 3,700 fires started on the last two days of April?

what PBS newsman moderated the first presidential debate?

What word ends the book title "Rubbish! The Archeology of _____"?

1k equals how many bytes?

24-karat gold has to have a small amount of _____ in it to keep it from being too soft?