How many ways can you find to make exactly 1000 with eight eights? You can only add, subtract, multiply, divide, use exponents and parentheses, and you can't use any number except 8.
hows about this:
1000 = (8 + (8+8)/8)^((8+8+8)/8)
though i like this one better (too bad it's not allowed ... ;) ):
1000 = (8/.8)^(log[(8+8)/8] (8))