Verbal Reasoning - Mental Ability Questions

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.

nature, ensure, tense, spent, spurn, ?

In a certain code language, if SIGN is coded as 8367 and DIRECT is coded as 134259, then SIREN will be coded as

A courier delivery man cycles 6 km South, then turns West and cycles 2 km West, then turns to his right and cycles 6 km, then turns West and cycles 8 km.Where is he now with respect to his starting position?

Rakhi got engaged 10 years ago. Rakhi's present age is 5/3 of her age at the time of engagement. If the present age of Rakhi's mother is twice that ofpresent age of Rakhi, then what was her mother's age (in years) at the time of her engagement?

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

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
19, 29, 40, 44, ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

GX, HW, IV, ?, KT

Out of the 100 nature lovers, 20 people wanted to see only bison, 30 wanted to see both bison and tiger, 15 wanted to see only leopard, 25 wanted to see only tiger, 5 wanted to see both bison and leopard and the remaining wanted to see only bear.

How many people who wanted to see bison did not want to see leopard?