Which of the following numbers will replace the question mark (?) in the given series?
 11, 20, 43, 94, 187, 336, 555, ? 

Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete?
 XUR, WTQ, VSP, URO, ? 

Which of the following numbers will replace the question mark (?) in the given series?
 19, 38, 35, ?, 135, 810

Which of the follow ing numbers will replace the question mark (?) in the given series
 13, 14, 23, 48, 97, 178, ? 

Select the number from among the given options that can replace the question mark (?) in the following series.
 45, 46, 50, 59, 75, ? 

Select the number from among the given options that can replace the question mark (?) in the following series.
 16, 32, 14, 19, 37, 21, 22, 42, ?, 25, 47, 35 

Select the number from among the given options that can replace the question mark (?) in the following series.
 121, 144, 169, ?, 225, 256 

Select the option in which the numbers shares the same relationship as that shared by the numbers in the given set.

(132, 186, 240)

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding /deleting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)