Calculate the number 685NUMBERMANIA: Calculate the number 685 using numbers [6, 1, 4, 4, 63, 175] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
There is no language wherein a double positive can form a negative
A linguistics professor was lecturing to his English class one day. “In English,” he said, “a double negative forms a positive.
In some languages, though, such as Russian, a double negative is still a negative.
However, there is no language wherein a double positive can form a negative.”
A voice from the back of the room piped up, "Yeah, right."