Smallpox.
(2) Is War Our Biological Destiny?
No, it's our political destiny.
(3) Will Humans Ever Visit Mars?
Probably.
(4) How Does the Brain Work?
Good question.
(5) What Is Gravity, Really?
Good question.
(6) Will We Ever Find Atlantis?
Found it: it's the island of Thera.
(8) What Should We Eat?
I reject the premise. Try: How can we remain perfectly healthy while eating whatever we want?
(9) When Will the Next Ice Age Begin?
Good question.
(10) What Happened Before the Big Bang?
What lies south of the South Pole?
(11) Could We Live Forever?
No.
(12) Are Men Necessary? ...
As far as I'm concerned, I am.
... Are Women Necessary?
Oooh, yeah.
(13) What Is the Next Plague?
Liberal talk radio.
(14) Can Robots Become Conscious?
Define conscious.
(15) Why Do We Sleep?
Good question.
(16) Are Animals Smarter Than We Think?
Yes. They are also stupider than we think.
(17) Can Science Prove the Existence of God?
No. Can religion solve the Dirac equation?
(18) Is Evolution Truly Random?
No, natural selection plays a role.
(19) How Did Life Begin?
Good question, but a scientific answer may not be possible.
(20) Can Drugs Make Us Happier? Smarter?
Yes.
(21) Should We Improve Our Genome?
Of course! Show of hands...who wants to keep cystic fibrosis?
(22) How Much Nature Is Enough?
I don't know...how does the whole damn universe sound?
(23) What Is the Most Important Problem in Math Today?
Good question.
(24) Where Are Those Aliens?
Good question.
(25) Do Paranormal Phenomena Exist?
All phenomena are paranormal until explained.
good one!