If A is older than B, C is older than B but younger than A. D is younger than E and B. B is older than E. then identify who is youngest 

In three coloured boxes-red, green and blue, totally 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box

Identify the wrong number in the following number sequence

5,6,14,40,105,230,446

In an alphabetical sequence, if 'EFGH' is related to 'VUTS' then BCD is related to 

Thanya is older than Eric. Daya is older than Thanya. Eric is older than Days. If first two statements are true third statement is

A committee of five members is to be formed out of 3 trainees, 4 professors and 6 research associates. In how many different ways this can be done if the committee should have all the 4 professors and 1 research associate or all 3 trainees and 2 professors