The 2015 elections is gaining lots of interests amongst youth, but information are few and scarce.
my questions are:
1. What happens if the elections are inconclusive ie a rerun?
2. What are the conditions for having a winner after a rerun, is it outright majority votes or majority votes and 25% in 2/3 states of the federation?
3. will the limited time allow for a rerun without affecting electoral laws?

pls answers should contain relevant proof thanks.