Giving My Xbox One to a friend. Can I transfer my Digital games to them as well?

Yes, clear your info. No, you can not transfer games between accounts.

can i transfer my Xbox 360 Digital downloads to my Xbox one

I would say if it's an official xbox 360 cable it is faulty take it back to where you bought it and tell them it doesn't work and ask for a replacement. If they give you the run around you can tell them proper xbox cable work easy transfering data so unless
they are selling dodgy items its faulty. I have a proper 1 and never have problem transferring data between my xbox's, and i have had friends buy cheap one's and they don't work well at all hope this helps you.

Well that's how digital console work

There is no platform that work the way you are suggesting

If one did they wouldmt habe games because it would invite theft

There is nothing stopping you from giving it to an unlimited amount of friends and giving them free digital copies

You purchazed a digital console only compatible with digital games not disks and yes it's says it on the box

"Give your games to friends: Xbox One is designed so game publishers can enable you to
give your disc-based games to your friends. There are no fees charged as part of these transfers. There are two requirements: you can only give them to people who have been on your friends list for at least 30 days and
each game can only be given
once."