If the word 'HELLO' is coded as '85121215', what is the code for 'WORLD'?

C. 23181512

Find the missing letter in the series: b, d, f, h, ?

A. J

In a circular seating arrangement, A is sitting to the immediate right of B, who is sitting opposite C. D is sitting to the immediate left of A. Who is sitting opposite D?

C. C

All mammals are warm-blooded. Is this statement true or false?

A. TRUE

If 'SCHOOL' is coded as 'TIDPMM', what is the code for 'TEACH'?

A. UFBID