Same as a Model 92 or if you have an extended magazine up to 20
Depends on who made it.
NO
One that is made for it. They hold 10 rounds and run about 35 USD.
Depends on the pistol. Typically 10 rounds for a Colt Woodsman.
Calico
That number of rounds can vary. Most of us are familiar with revolvers that hold six rounds. Some pistol magazines can hold up to 13 and more. I know of one revolver with a cylinder that holds nine rounds.
6, IIRC
It depends on the pistol make and model, and what it is chambered for. Most semi-autos nowadays hold at least 12 rounds. Most revolvers hold six.
None. No such gun.
Normally 30 rounds per clip
A pistol typically has a magazine, which is a device that holds ammunition and feeds it into the chamber for firing. The term "clip" is often mistakenly used to refer to a magazine, but clips are used to hold rounds together for loading into a magazine, not as a feeding device themselves. In summary, pistols use magazines, while clips serve a different purpose in the loading process.
No