Idiomatically

when pigs climb up the tree

unless the sun rises in the west

one stone two birds

Early bird gets the worm

to make a big work out of a small topic

to want one's horse to run fast without letting it graze

Bitten by a snake on one day, afraid of the rope by the well for ten years

buy a cow over there in another mountain

a plate of small dishes

chicken is talking to a duck