How does ten equal two?

Answer 1

5 multiplied by 2 is 10

Answer:
Consider the joke: There are 10 kinds of people in the world those who understand binary and those that don't.
Binary uses powers of 2 to express numbers. Thus 20=1,21=2, 22=4 and so on (numbers shown in decimal). This is expressed as strings of numbers using either 0 or 1. Thus 0(binary) =0 (deciamal). 1(Binary)=1 (decimal) or 20, 10(binary)=2(decimal) or 21, 11=3 (decimal) =10+1(binary) = 21+20 and so on.