How to read binary - quick and simple

Ok, i picked binary up in all of 2 minutes, so it shouldn't be hard for the rest of ya; here's the break down - things to know
A) Binary reads from RIGHT to left
The Zeros and Ones aren't numbers - they're symbols
C) The Zero (0) symbol represents an empty place holder
D) The One (1) symbol represents a filled in place holder
E) Excess zeros may be dropped
F) Each place represents the number of the previous place multiplied by 2 (2X)
(128 64 32 16 8 4 2 1)
Example:
00000101
This binary number is equal to 5;
the first 0 represents {1}, the second {2}, and the third {4};
Since the First and Third place are filled in (with a 1 symbol) the value is equal to 4 AND 1 which = 5
Because of rule E we can just write this number as 101, instead of 00000101.
Next Example:
100101
This one is equal to 1 + 4 + 32 = 37
Now, can you figure these out?
Q1) 10111111
Q2) 21