humans didn't evolve from apes. it hasn't been proved yet. all that has been proved is they (actually chimps, not even apes) have one pair more chromosome than we do.

k waaiyaat kura garera samaya khera faaliraheko!

for example, why doesn't glue stick to the bottle are! yesto pani question hunchha?
answer is: the normal glue we use is a type of dry glue. that means the solute (main thing that makes the whole thing sticky) is dissolved in some solvent (water, organic liquids, etc). and so, until it is in liquid form, it never is sticky!

don't ask these stupid questions man. get a job!