Who/ What created humans?

If you refer to actual evidence rather than religious myths that were simply written, we evolved rather than were created. By evolution via natural selection. Supported by many evidences including fossil, comparative DNA, mtDNA, comparative anatomy, embryology, etc.

Evolution has enough evidence to convict in any court of law while no other explanation has any supporting evidence. The scientific method rules out "creation" by either intelligent aliens or an omnipotent god. To support intelligent design one must first provide evidence the designer exists or did exist & if said designer was extra terrestrial, how did the designer evolve. It is doubtful that without a time machine we will ever be able to absolutely prove evolution to some, but the supporting evidence is overwhelming while no other explanation has any supporting evidence.

first the big bang, then the gravitational coalescence of the solar system, including the earth, then evolution.

God

Other humans, has your mum told you about the bees and the birds yet?

Depends on what you believe

Creation implies a willful act by someone/thing. This isn't how it happened. We came into existence in a piecemeal fashion over millions of years of evolution. The pile of evidence that supports this is far thicker than the average bible.

God. (:

You will get loads of different answers for this. Some say God, others say slime or another type of animal, others say aliens. Personally I think God, our bodies are too intricate to come from anything other than an intelligent being.