name = 'Zed A. Shaw'
age = 35 #not a lie
height = 74 #inches
weight = 180 #lbs
eyes = 'Blue'
teeth = 'White'
hair = 'Brown'
height_in_centimeters = height * 2.54
weight_in_kilos = weight * 0.453592

IO.puts "Let's talk about #{name}"
IO.puts "He's #{height} inches tall."
IO.puts "He's #{trunc(height_in_centimeters)} centimeters tall."
IO.puts "He's #{weight} pounds heavy."
IO.puts "He's #{trunc(weight_in_kilos)} kilos heavy."
IO.puts "Actually that's not heavy."
IO.puts "He's got #{eyes} eyes and #{hair} hair"
IO.puts "His teeth are usually #{teeth} depending on the coffee."

#this line is tricky, try to get it exactly right
IO.puts "If i add #{age}, #{height} and #{weight} i get #{age + height + weight}."