Question

Using the numbers 8, 4, 6, and 2 what combination equals 16, ONLY USING THE NUMBERS ONCE, but you can do any operation such as - + ÷ and x

Answer 1

That would be 8+4+6-2 = 16

Answer 2

(8÷4+6)2
Eight divided by four equals two. 
Two plus six is eight. 
Eight multiplied by two is sixteen.