Answer
Depends on the car.
Most sedans and coups have 16 or 20 (i.e. 4 or 5 on each wheel). Midsize trucks often have 5 per wheel. Larger trucks, 6 per wheel. Large trucks (Ford F-250s and the like) 8 per wheel. Buses and larger vehicles can have 10 or more per wheel.
On a 2000 Lincoln Town Car : ( there are 5 lug nuts per wheel , total of 20 lug nuts )
5
5
5
5
5 is average.
5
5 lug nuts is common in 3/4" size.
5 lug nuts on
5 lug nuts ...
Loosen the lug nuts counterclockwise. Next, jack up car at the jack points (there are covers below the rocker panels). Jack up car, unloosen all the lug nuts. Remove wheel, replace wheel. Tighten lug nuts until they are seated against the rim. Lower car. Tighten lug nuts crosswise. Next stop, have the lug nuts torqued down.
KIA lug nuts are the same as other lug nuts on other car makes. To remove or tighten them, use a standard lug nut wrench or the one found in the trunk of your KIA.