Riddle of the week 6509

1
Riddle of the week 6/5/09

• Four black cows and 3 brown cows give as much
  milk in 5 days as 3 black cows and 5 brown cows
  give in 4 days. Which color cow is a better
  milker and why?

2
Riddle of the week 5/18/09
Solve the Rebus Puzzle
3
Riddle of the week 4/27/09
Solve the Rebus Puzzle
4
Riddle of the week 4/6/09
Solve the Rebus Puzzle
5
Riddle of the week 3/30/09
Solve the Rebus Puzzle
6
Riddle of the week 3/23/09

• Im a three digit positive number. My tens digit
  is 5 more than my ones digit. My hundreds digit
  is 8 less than my tens digit. What number am I?

7
Riddle of the week 3/16/09

• Im where yesterday follows today and tomorrow is
  in the middle.
• What am I?