A short nap is referred to as 40 winks.
Short Short Dramas - 1952 Interruption Part 2 The 1-40 was released on: USA: 12 February 1953
40 winks is an expression. It refers to a short nap.
-(-40) = +40.
Nah...
40% = 0.4
40 = "cuarenta"
40
Short person who is 40
If you mean 40% of 70 then it is 28
If you mean: 40+(40*0)+1 = 41
Probably a short to ground.