Answers to parajumbles
1) Option 3 is best suited as BD and Ec are the mandatory pair and only option 3 and 4 have it. The remaining job is to check the permutation and combination of the same. By doing so one can easily see that B follows the first one.
2) This is from the hard level of para jumbles.Option 5 is the answer.
a crack to this would come from the link between EC. as soon as one decides that EC is the mandatory pair immediately the answer summarizes to
DECB. I too got it wrong 
3)Option 3 .This was also the tough one as is clear from the language. Anyways the look at the option can tell that either B or C will follow the suit hence Again a thought would have eliminated the options beginnning with C as that is not carrying the legacy or flow . now DC are mandatory pair and E should come at the end. hence
BDCE.
4)Option1. A sitter para jumble as soon as one neds reading the scrambled lines one would be clear that only E will follow A hence
EDBC.
Many got it correct .. oK next set coming tommorrow .....