15
it took 18 days to invent antibiotics
helicopter
It depends what helicopter it could range from 8 to 80
no
3
2
Many millions of years.
35 or 40 years
fifth year
the attempts of gate are not limited.you can take gate as many times as you want.But one should try to clesr it in first or second attempt..
63 field goal attempts and 32 free throw attempts
Literally thousands, it would take a lot of research for an exact number.