Complete the series Z, ?, T, ?, N, ?, H, ?, B 

Find the Odd Number in the given Number Series 3, 6.5, 14, 29, 64, 136 

Which of the following mode of selection is related to procurement of goods? 

 Which gas contributes the most to the greenhouse effect? 

_ _aba _ _ ba _ ab 

Based on its dry weight, a freshly felled tree may contain water 

If 14:17::25:? 

What is the number of members in NEC?