Screws are stronger because they fasten them selves on and the twirly pattern makes them stronger where as you have to bash nails into the wall which isn't good for the wall and is likely to make it splinter and thus the nail is more likely to come out.
can nails and screws be a solution?
depends on the wood, nails, screws. but both are ok use
One screws one nails use joints not screws and nails.
Screws are threaded to twist in when turned with a screwdriver. Nails are smooth to slide in straight when pounded with a hammer.
Screws
In general, screws are stronger than nails of similar size. In other words, it is much easier to pull out a nail than a screw. Not all carpentry jobs require that degree of strength, however, so sometimes it is perfectly appropriate to use nails. I would have to know what you are building, to say if you should be using screws or nails. Nails, of course, are easier to install, and also less expensive, so for some jobs that are better.
The most common method is with one or more screws or nails. Wood screws are especially made for the purpose. But screws and nails are not the only option. They can be bolted or pinned together, for example. with a bolt
Fine woodworking is the use of no nails or screws.
Because I was fresh out of screws and bolts.
a barber
It depends on what 'the old days' means. Screws are more expensive than nails and easier to emplace. That has been the advantage of nails for most people for a long time.
Well animals nails will be on an animal but human nails are on humans but i thing that animal nails are stronger and contain more ivy