Yes, but you need a special liquid from the pipe store.
It depends on the amphetamine. If you're talking about something like Adderall or Ritalin, they leave your system in less than 2 days after you start taking them. As for other amphetamines, you need further help to that.
you cant.
Febuary has less than 30 days.
only a couple of days. less than a week.
just clean it
Less than 15 days.
for your urine it shoud be clean in 3-4 days and blood a little less than a week
60<90
Less than a month. Smoking more often than that stays in your system for 30 days, so 6 hits is nothing.
It is less than 2 years. 2 years is 730 days, or 731 days if one is a leap year.
yes a year on Venus is less than 2 days
1 week = 7 days 4 weeks = 28 days So 29 days is not less than 4 weeks.