NO!
You do not need tape on any flared fitting, brake or regular. The brake line and the fittings are different size and thread type than regular copper line and fittings. You can't mix them.
Sweat a female fitting on the copper or use a compression coupling between the two.
An olive is a compression fitting used in plumbing. you would use a 22mm olive. you would use t in conjunction with a 22mm compresion fitting Before you use a 22mm olive make sure the pipe you are using the 22m fitting on IS 22mm and NOT 3/4. If it is 3/4 then you need a 3/4 olive from your merchants but they fit inside a 22mm compression fitting.
You use a compression fitting or something like a Sharkbite.
You will have to have a reducer made which fits your requirements, it also depends on your use but you can have a fitting or pressure line made that suits your needs. Consult with a professional... Search under yellow pages for suppliers of fittings and you'll get very good help there.
No. Regardless of what type of supply line you use between the house supply and the faucet it will be a compression fitting. Copper lines with a nut and ferrule or flexible ones are both compression and do not need tape or pipe dope.
on internal cold water supply pipework is wrong answer
you can use a brass compression fitting available at plumbing stores to join the two halves of the fuel line after you cut right through the pinhole with a tubing cutter separating the line. no more hole.
on internal cold water supply pipework is wrong answer
replace brake line the damage to the line or if the jb weld gets into the line it will affect how the system works.
No!!!! Use either a compression fitting, or what they call a Sharkbite, these things are incredible and will attach PVC, PEX, or copper using the same fitting.