1the weather is extremely cold
brass monkeys
2as awkward as ...
a cow on roller skates
3as conceited as ...
a barber's cat
4guess wrongly
back the wrong horse
5to waste time and effort trying to do something that is impossible
to beat a dead horse
6being alive, even in a humble state, is preferable to having died with power or status
better to be a live dog than a dead lion (ecclesiastes, bible)
7белая ворона
the black sheep of the family
8A blind purchase
to buy a pig in a poke
9Waste of Value
cast pearls before swine
10try to stop a problem too late
lock the barn door after the horse is gone
11to find fault with a gift
to look a gift horse in the mouth
12look very proud, satisfied
look like the cat that swallowed the canary
13exaggerate
make a mountain out of a molehill
14to turn something ugly or inferior into something attractive or of value
make a silk purse out of a sow's ear
15copies
monkey see, monkey do