Four friends, A, B, C, and D, went to a party at different times. A arrived before B but after C. D arrived after B. What is the correct order of their arrival?
In a coding system, 'FISH' is represented as '614891'. If 'F' is 6, 'I' is 9, 'S' is 19, and 'H' is 8, what is the code for 'BIRD' where 'B' is 2, 'I' is 9, 'R' is 18, and 'D' is 4?