Which Indian company became the third-largest silver

Which among the following word cannot be formed using the letters of the given word only once?

CONTRADICTION

Answer the questions based on the information given below.

TOL     PUB    PEN    GEB    RIA

Select the set of letters that when sequentially placed in the blanks of the given letter series will complete the series.

_SWWS_WWWS_SWWWW_SSS

Which letter cluster will complete the given series?

FUYV, HTBT, JSER, LRHP, NQKN, _____

Select the odd letters from the given alternatives?

Answer the questions based on the information given below:

Select the letter-cluster that can replace the question mark (?) in the following series. CXB, HUI, MRP, ROW, ?

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.

WUW, TSV, QQU, NOT, ?

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.

TSF, RPJ, PMN, NJR, ?