> Atheists why don't you accept the fact that evolution is a big joke?
I agree. The joke's on you though.
> How can random mutations create the perfect order we get in nature?
Try ignoring your garden for a year and say again that we get "perfect order" in nature.
Apart from that: non-random survival of individuals with traits that increase its chance of survival/reproduction.
> Where are all the intermediate species?
Everywhere. Every species is an intermediate species.
> There should be fossils of ancestors of giraffes that have shorter and shorter necks, but they are not anywhere.
There should have been animals like that. Whether they've fossilised is another matter. Anyway, go on, get hung up on giraffes. Ignore whales, horses, elephants, birds and everything else.
> When you see a Boeing you know that it has been created, designed by someone.
Actually I know that the basic design has probably been perfected by computer simulations of fluid flow around airfoils, where the computer optimises the shape of the aircraft using simulated annealing.
> But when you see a bird, much more complex, you think it was created by chance?
No, I know it evolved by non-random survival of individuals with trades favourable for survival, effectively optimising the shape of the wings and the size of breast muscles. You know, a bit like what simulated annealing would do.
> Why should single-celled organisms "evolve" in multi-cellular organisms that are vulnerable to the environment?
Benefits. Why do people live in communities rather than as individuals?