Find the next number in the following number series?
7, 10, 8, 11, 9, 12, ?

From the given alternative , select the word which cannot be formed using the letters of the given words .
MOTLIEST 

Find the related words.
$$ {L\over S}:{12\over 19}::{I\over T}:?$$

In the following question, select the one which is different from the other three responses.

What will come in the place of question mark?
23, 93, 373, 1493, ?

Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fifth term.
 11 : 94 :: 23 : ? :: 18 : 150

In each of the following questions, certain pairs of words are given, out of which the words in all pairs excepts one, bear a certain common relationship. Choose the pair in which the words are differently related?

Direction: Study the following information carefully and answer the questions given below:
Eleven persons buy things one after another. Only five persons buy things after P. Three persons buy things between P and Q. R buy things after S and before T. There are as many persons buy things before U as after V. More than three persons buy things between W and X who buy things just after P. Y buy things before Z and after R. No one buy things after T. Y buy things just after V. U buys after Q.

Which of the following statement is true?