'O' is a point in the interior of an equilateral

Out of the following five figures, four are alike in some manner and one differs from these in that manner. Select the Odd figure.

Which number will replace the question mark (?) in the following number series?

2, 3, 6, 10, 17, ?

Select the next number in the category. 

43, 44, 48, 57, 73,?

which word from the options given below can be formed using all the letters in the letter group AEEVIRCT.

In a certain code language, 'PAGES' is coded as 192', 'ABOVE' is coded as "180". What is the code for 'PRIOR' in that code language? 

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

Choose the pair which is related in the same way as the words in the first pair from the given choices.

CRICKET : PITCH :: SKATING : ________________

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