In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. - a _ cdaab _ cc _ daa _ bbb _ ccddd

D. BBDAC

At an Electronic Data Processing Unit, five out of the eight program sets P, Q, R, S, T, U, V and W are  to be operated daily. On any one day, except for the first day of a month, only three of the program sets must be the ones that were operated on the previous day. The program operating must also satisfy the following conditions :
(i). If program P is to be operated on a day, V cannot be operated on that day.
(ii). If Q is to be operated on a day, T must be one of the programs to be operated after Q.
(iii). If R is to be operated on a day, V must be one of the programs to be operated after R.
(iv). The last program to be operated on any day must be either S or U. Which of the following is true of any day's valid program set operation ?

C. R CANNOT BE OPERATED AT FOURTH PLACE.

Which one word can be formed from the following letters ?
a  a  b  c  i  l  l  n  o  o  o  r  t

D. COLLABORATION

If A + B means A is the brother of B; A / B means A is the father of B and A * B means A is the sister of B, which of the following means M is the uncle of P ?

D. M + K / T * P

In the following question, arrange the given names in the order in which they would occur in a telephone directory and choose the one which appears in the middle.

C. AWADESH