How did life originate?
Why are the (expected) countless millions of transitional fossils missing?
You got to question the intellectual honesty and motive of this campaign when they include questions like this. Evolution says nothing about the origin of life or abiogenesis. Missing fossils? First, we are very very lucky to even find fossils...they are wanting "countless millions"? Right. Every time a fossil is found, they point to the gap between that and the next fossil and say "where are all the intermediary steps?" ...or..."now we have twice as many gaps!".
As for some of their other questions - who does have those answers? They might as well question everything we know about the universe because we do not yet know what Dark Matter is. What we don't know yet does not completely negate what we do already know.
BTW, seen this interesting discovery today...
http://news.yahoo.com/closest-human-ancestor-may-rewrite-steps-evolution-141606435.html