Eight persons P, Q, R, S, T, U, V and W are sitting in a straight line and facing north direction. Their ages are, 12, 14, 18, 26, 29, 35 ,42 and 67. The one who is 12 years old is 4thto the left of the eldest person, who is sitting at the end. The sum of the ages of S and Q is equal to P. S is not the youngest person. S and W are neighbous of Q. R’s age is not an even number and he is older than W and younger than U. Only 3 persons are sitting between S and U. Only 2 persons are sitting between Q and T, who is 29 years old. P is not the neighbour of U. R is not sitting to the left of Q.