5. even
6. odd
7. A binary number ending in two zeros is a multiple of 4.
8. true
15. 1000011
16. 11000011100
17. 21
18. 3413
19. 15
20. 110110001111
24. With 5 bits you can code 32 colors.
    With n bits you can code 2 to the power of n colors.
25. #33AB12
	rr(red): 51
	green(gg): 171
	blue(bb): 18
26. There are 255 shades of gray.