In a certain code, if 'CAT' is coded as '3120', 'DOG' is coded as '4157'. How is 'FISH' coded?

C. 61487

A, E, I, O, ?

A. U

Which pair of words is the odd one out?

D. BIRD - EAGLE

A, B, C, D, and E are five different fruits: Apple, Banana, Cherry, Date, and Elderberry. The following conditions apply: Apple is not next to Banana. Cherry is next to Date. Elderberry is not next to Apple. Which fruit is next to Date?

C. CHERRY

What is the H.C.F. of the polynomials 2x^2 + 4x and 4x^2 + 8x?

A. 2X