Which of the following numbers will replace the question mark (?) in the given series?
 11, 13, 29, 91, 369, ?

Select the option that is related to the fifth word in the same way as the second word is related to the first word and the fourth word is related to the third word. (The words must be considered as meaningful English words and must NOT be related to each other based on the number of letters/number of consonants/vowels in the word)
 Nut and Bolt : Wrenches :: Screw : Screwdriver :: Nail : ?

The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs, EXCEPT one. Find that odd number pair.

In a certain code language, 'GREAT' is codedas '2015187', 'WORK' is codedas '11181523' and 'GOING' is codedas '7149157'. How will ‘WELL' be codedin that language?

Which of the following numbers will replace the question mark (?) in the given series?
 10, 20 , 23, ?, 97, 582

Which letter-cluster will replace the question mark (?) to complete the given series?
 ERKV, HYVK, ?, NMRO, QTCD

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 57 * 35 * 44 * 11 * 13 * 40 

Select the correct mirror image of the given combination when the mirror is placed at MNas shown.