The smallest functional unit of the kidney

What should come in place of '?' in the given series?

14  85  511  3067  18403  ?

Which two numbers and two signs should be interchanged in the following equation to make it correct?

4 + 2 ÷ 7 + 8 × 9 = 25

What will come in place of ‘?’ in the following equation, if ‘+’ and ‘–‘ are interchanged and ‘×’ and ‘÷’ are interchanged?

Three of the following four figures are alike in a certain way and one is different. Select the odd one.

In the following question, select the figure which can be placed at the sign of question mark (?) from the given alternatives.

Select the set in which the number are related in the same way as the numbers of the following set.

(12, 30, 204)

Select the set in which the numbers are related in the same way as are the numbers of the following set.

Four of the following five are similar in a certain way, which creates a group. 

Which of these is not related to this group? 

Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below.