What will come in the place of question mark (?) in the

Complete the following series.

e25, j100, o225_______

Select the figure from the given options that when put in place of the question mark (?) will logically complete the series. 

A sum of money doubles itself at the compound interest x in 10 years. In how many years it will be four times at the same compound interest? 

Statements:

Some wallets are purses.

Some purses are bags.

All bags are suitcases.

Conclusions:

Select the option figure that will replace the question mark (?) in the figure given below to complete the pattern.

Which among the following words cannot be formed using the letters of the given word "ENVIRONMENT" using each letter only once?

Four of the following five figures are alike in a certain way and thus form a group. Select the one that does NOT belong to that group.

Statement: 

A. Some fish are birds.

B. No cat is bird.

Conclusion:

I. No bird is cat.

II. Some birds are fish.