Brain Teaser's / Riddels. Number 29
1] Tim notes that his five best friends don't know one another. To rectify this, he invites three of them to lunch. Adams, Brown and Carter. (The two other friends are Dickinson and Emerson.) The five first names in no particular order are:
Alex, Bob Chip, Dave, and Elmer. After the lunch Tim notes:
. Bob still does not know Brown.
. Chip knows Adams.
. Dave knows only one of the others.
. Elmer knows three of the others.
. Alex knows two of the others.
. Dickinson knows only one of the others.
. Emerson knows three of the others.
What is the full name of each of the five?
Pick the tomato, get the answer!
1]Dickinson is the only one who knows only one of the others. His first name must be Dave. Bob is neither Dickinson nor Brown. Not knowing Brown, he cannot be Adams nor Carter, so Bob is Emerson. The first names of the friends at lunch are Alex, Chip, and Elmer. Alex knows Chip and Elmer. Knowing only two friends, he does not know Bob Emerson or Dave Dickinson. Bob Emerson knows three friends. They are Chip, Dave Dickinson, and Elmer. Dave Dickinson, knowing only one friend, does not know Chip or Elmer. Alex and Brown are the only ones to know only two friends. They are the same person: Alex Brown. Adams's first name is Elmer and Carter's is Chip. The full names are Elmer Adams, Alex Brown, Chip Carter, Dave Dickinson, and Bob Emerson.