If A > B, B > C and C > D, then which of the following conclusions is definitely wrong?

If in English alphabet, A = 1, D = 2, P = 4, then which of the following denotes 3?

If water is called food, food is called tree, tree is called sky, sky is called wall, then on which of the following grows a fruit?

Which of the following group of letters is different from the others?

All dolls are pens. Some ducks are dolls. Some dogs are ducks. Which conclusions follow?

Three of the following four are alike in a certain way and form a group. Which one does not belong to that group?