Study the following arrangement carefully and answer the questions given below:
M 5 $ P 6 W ! R 5 B 4 7 H @ O 7 # V  Y  N & * A   8 J ! Q  U % G L 7 F  C E   & X  Z  S 1 © 3 K β

How many such numbers are there in the above arrangement each of which is either immediately followed or preceded by a letter but not both?  

In a running race, if you overtake the last but one contestant, which position are you in?

There are five different cottages, M to Q in a row. M is to the immediate right of N and O is to the immediate left of Q and immediate right of M. N is to the immediate right of P. The first cottage from the left is _____ ?

Five students took part in A. cycling competition. Robert finished before Monish but behind Gunjan. Anil finished before Sunil but behind Monish. Who won the competition?

A is longer than F, which is smaller than three persons. C is shorter than D who is tallest, B is taller than E, C is neither shorter than F nor taller than A. Who among the following is the second youngest person?

The IQ of 7 boys B1, B2, B3, B4, B5, B6 and B7 is tested and the values are compared. B2 has a higher IQ than B6. B5 has the third lowest IQ. B4 has a higher IQ than 6 boys. B3 has an IQ less than B2. B1 has a higher IQ than B2. B7 has the least IQ. Who has the second highest IQ?

Five articles, bat, ball, fan, table and chair, are kept one above the other (not necessarily in the same order). The bat is four places above the fan. The table is between the ball and the chair. The chair is three places below the bat.

Which article is at the second position from the top?

The position of how many digits in the number 6147982 will remain same after the digits within the number are arranged in descending order?