It depends on a lot of factors; quality of the marijuana, number of times you have used marijuana (a veteran smoker doesn't stay as high as long). My first time smoking marijuana I smoke some high grade stuff and was high for over 3 hours.
about 5 minutes
Not necessarily, however it does increase your high.
About 15 days.
for about a hour
6mo.
About 1-3 Hours depending on the quality of the marijuana.
about 5 minutes
marijuana stays in your system for 30 days. a high from maryjane usually last 5-6 hours
if you mean stay high. It depends on how strong your stuff is. for me one hit doesn't do anything
No.
hii
For as long as you smoke dope.
Not necessarily, however it does increase your high.
About 15 days.
Forever!
for about a hour
90days