- Challenge: Evolution
- Challenge: A right to die.
- Challenge: Owning Guns
- Challenge: Ethical Governments
- Issue: Affirmative Action
- Challenge: Light Speed, Obtainable?
- Challenge: Science as proof of God
- Challenge: USSR and Marxism...
- Did we land on the Moon?
- Challenge: Environmentalists versus Agriculturalists
- Featured Debate: Should Manned Spaceflight Continue
- Challenge: The lot of man has not improved as civilisation has advanced
- Challenge: Order is Liberty
- Challenge: YOU are a zombie!
- Challenge: Does God exist?
- Challenge: Thomas Hobbes v. John Locke
- Challenge : Theology and religious education in schools.
- The Root of all "Evil"
- Request To Moderator(challenges)
- Challenge: extra terrestrial life
- Challenge: There are some structures and processes..
- Challenge: We Need Regret
- Challenge: Biology and Psycology and Social sciences are not sciences.
- Challenge: History Classes Promote Violence
- Challenge: Computers are alive.
- Challenge: Science and Religion are Irreconcilable
- Challenge: Mathematicians are failed Physicists and vice versa
- Challenge: "The Day after Tomorrow" as a reality
- Challenge: Fast Food is (mainly) unnecessary
- Challenge: The universe is infinitely big.
- Challenge: Unrestricted Capitalism is Always Doomed to Fail
- Challenge: Gravity is a push !
- Challenge: The best renewable energy source is Biogas
- Viruses will be the last one to exist on the planet earth
- Challenge: Millions of Jews killed in the Holocaust
- Challenge: Medicine de-evolves our genes
- Challenge: Women should not have the final say on their Abortions
- Challenge: Jury system ethics
- Challenge: A Global Space Organization will Benefit Humanity
- Challenge: Democracy is not the best political system.
- Challenge: Einstein's relativity is an abstraction of a non-relative whole.
- Challenge: behavioral science a non-starter
- Challenge: Superstring Theory Will Become the True T.O.E.
- Challenge: Marajuana Should be legalized
- Challenge: Economic Sanctions in Iraq were abused to intentionally harm civilians
- Challenge: The LHC will discover the Higgs boson and supersymmetry
- Challenge: Stem cell research is unjustified
- Challenge: Essence Of Evil
- Challenge: Religion is Man's way of justification
- Challenge: Eventually we'll get back from digital to analogic.
- Challenge: DDT should come back into regular use
- Challenge: English should be the international standard.
- Challenge: Creationists are not morons!
- Challenge: Making logical decisions always better than making emotional decisions.
- Challenge: Scary Children Stories
- challenge: Their is no such thing as free will
- Challenge: If a tree falls and no one is around, it does not make a sound.
- Challenge: We will achieve technological singularity within the next two decades
- Challenge: Capital Punishment is Morally Correct