Which one of the following elements is not essential for

Select a unique number for each letter in the following table according to which a meaningful word will be formed when the letters are arranged. 

How many triangles are there in the given figure?

Select the option that represents the correct order of the given words as they would appear in an English dictionary.

1. Appear

How many 7s are there in the following series which are not immediately followed by 3 but immediately preceded by 8?

898762263269732872778747794

Select the option that is related to the third word in the same way as the second word is related to the first word.

Lazy : Hard-working : : Wealthy : ?

Select the correct mirror image of the given pattern when the mirror is placed at 'MN' as shown below.

If 'A' stands for '÷ ', 'B' stands for '×', 'C' stands for + and 'D' stands for '–', what will come in place of the question

Select the correct mirror image of the given figure when the mirror is placed at MN as shown.