In Which Year was the North Atlantic Treaty Organization

In a certain code language, 'ALLIES' is coded as 'REHLKA'. What is the code for 'BALLET' in that code language? 

Refer to the given letter, member, symbol series and answer the question that follows.

(Left) K L % Y & 4 E 2 * 3 M & 7 S W # 8 2 H * L (Right)

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

Which two signs should be interchanged to make the given equation correct?

12 ÷ 2 × 6 + 4 – 2 = 13

By interchanging the given two signs which of the following equation will be correct? 

× and ÷ 

I. 5 + 6 × 2 – 4 ÷ 1 = 10 

Find the ratio at which rice at ₹15.20 per kg is mixed with rice at ₹18.10 per kg to get a mixture worth ₹16.30 per kg. 

Change the question mark with the option that follows the applied logic in the first pair.

E: P :: I: ??

Form a meaningful word with the third, fourth, fifth, seventh and tenth letters of the word 'PERSONALITY'. What is the last letter of that word?