Which was the first reptile which changed from cold blooded to warm blooded? How and why?
If we evolved from apes, why did we lose the fur? The fur is a clear advantage to any species and not having any is a setback.
How did the first female animal feed her young if her papilliary glands hadn't evolved yet? How would the offspring survive with no milk from it's mother?
How did the first ape reproduce if it's partner hadn't evolved yet. They had to both exist at the same time and at the same place. Same with the rest of the animals.
How did the first cell reproduce if it's dna strand hadn't been written yet since it came to be by chance. There was nothing for RNA to transfer so you would have no cell duplication.
Why did plants evolve into so many species? Survival-of-the-fittest doesn't apply to them since they've always been the food of animals and have continued to be so. If anything, they should have evolved a resistance to being eaten not to become the favorite plate of so many herbivore predators.
What explains the beauty in nature? You don't need beauty to survive. For example, why are reef fish so colorful? They don't camouflage into their surroundings they stick out from their surroundings making them a perfect target for a predator. Yet the beauty of their community amazes us as spectators. Why would they evolve the colors if it doesn't help them survive?
How did giraffes get their long necks? One might say to reach the high plants but the first giraffe whose neck grew an inch longer still couldn't reach the plants high above so it would have died with no use for it's trait so it would not have been kept in it's genome. Same with birds and their wings. A wing would have started as a stub with no advantage to the species so that trait would not have been kept.
Why do we see in so many colors? We don't need to. Most animals see in just a few colors and survive just fine. This color spektrum doesn't give us any advantage.
If every single creature evolved and is in constant state of evolution, then how come, from 3 million species alive today, we don't see thousands in the process of evolving?
In that same note, how come the fossil record doesn't back up evolution? If all creatures evolved slowly, we would find millions of fossil records of creatures in an evolutionary state. In fact, most findings should be of transition and not skeletal structures of complete creatures.
How does evolution explain the Cambrian Explosion? That is, the period 580 million years ago where life sprang into existance suddenly and with no slow transition. The fossil record does not back up evolution, the contrary. It shows life coming into existance suddenly and not slowly through any type of progressive mutations.