Verbal Reasoning - Mental Ability Questions

In a row of boys, Tarak is 18th from either end. How many boys are there in the row?

In the following question, select the missing number from the given series.
9, 18, 72, 576, ?

In a certain code language, "TREASON" is written as "RKWWINX" and "POULTRY" is written as "CNXHYKT". How is "NUMBER" written in that code language?

Arrange the given words in the sequence in which they occur in the dictionary.
1. Storm
2. Strap
3. Strangle
4. Stamped
5. Satire

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?

Find the missing number?

If CROWNED is coded as APMULCB, then how will TAP be coded as?

Arrange the given words in the sequence in which they occur in the dictionary.
i. Uniform
ii. Unitary
iii. Umbrella
iv. Unicorn