A spider that flys in the air and then an aeroplane cuts off 5 of its legs and then the spider falls on a gluey feather in the sky which gives him another leg and then he lands with 4 legs.
...there is a simpler answer which i don't know...
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BUI
3 legged man comes down with fourth because hes a old man with a can
AN OLD MOTHER TRUCKER
What has eight legs but has more eyes
dog
What goes up when rain comes down is an umbrella.
your age
Nothing
Heat goes up when rain comes down. This is a kid joke.
i think its not an animal but a human because the "mountain" is when your born and when u die so when u r born u need your arms to balances and when u can walk you are on top of the mountain and as u get older u need a cane to help u walk and that's when u get down from the mountain :)
age
rain