Verbal Reasoning - Mental Ability Questions

BACTERIA : ILLNESS :: ____ : ____

If "-" means "plus", "x" means "divide", "÷" means "multiply" and "+" means "minus", then 26 + 400 x 20 – 21 ÷ 12 = ?

Five boys A, B, C, D and E are standing in a line. A is taller than E but shorter than D.B is shorter than E and C is the tallest. Who is in the middle?

In a certain code language, "SINGING" is written as "TJOHJOH". How is "DANCING" written in that code language?

In the following question, select the missing number from the given series.
5, 13, 40, 104, ?

Find the missing number from the alternatives.

If 4 x 9 x 3 = 4 and 5 x 3 x 1 = 3, then
9 x 9 x 7 = ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
AG, LR, WC, HN, ?