Verbal Reasoning - Mental Ability Questions

Select the missing number.

From the given words, select the word which cannot be formed using the letters of the given word.
FAMISHED

In the following question, select the related word from the given alternatives.
Frog : Amphibian : : Lizard : ?

A boy leaves his school and travels 20 km towards the north. He takes a left turn and travels 30 km, then he turns towards the east direction and travels 50 km further. Finally, he turns to his right and travels 20 km more. Which direction is he now with respect to his school?

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Biological

Find out the odd word/letters/number/number pair from the given alternatives.

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

15 - 5 + 25 ÷ 10 = ?

How many such numbers are present in the below arrangement which are immediately preceded by a consonant and immediately followed by a letter?

Q@A3RI4*6T4W4O2^E$6S