Verbal Reasoning - Mental Ability Questions

Select the related word/letters/number from the given alternatives.
Nephrology : Kidney : : Ichthyology : ?

If 23$35 = 13, 3$5 = 8 then what is the value of 4$13 = ?

Which word comes first in the dictionary?

C has more money than E and E has more money than B. C is the second richest after A. Who has the least money out of A, B, C and E?

Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis. If 98-39-27=31, 87-38-34=20, then 79-25-12 = ?

If 'x' means addition, '­' means division, '÷' means subtraction and '+' means multiplication, then which of the equations is correct?

If in a code language 3456 = ROPE and 15526 = APPLE then 54613 = ?

In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.

17 x 18 ÷ 30 - 20 + 14 = ?