Question

If
1=5,
2=25,
3=125,
4=625
then
5=??

Answer 1

There are two ways to look at this puzzle:
1) since 1=5 so 5=1
2) This is a series which means x=5^x i.e. 5=3125 so its up to you which answer you want to pick..

Answer 2

Answer is 1

very easy question though.

Answer 3

3125 because the series is in sequence of multiples of 5.