Should I wear socks with running shoes?
Yes. They absorb sweat and cushion your feet.
Yes or youll get blisters
If you don't then you can expect smelly shoes and probable blisters on your feet, not to mention wearing out the inner lining of the shoes faster.
Yes, if you don't you will have smelly feet and shoes.
Only if you want to. You can also wear them barefoot if you don't feel like wearing socks.
it makes the shoes more comfortable, especially on long road training runs.