To make one's blood flesh creep:  (to frighten someone greatly) The eerie silence and an air of mystery of that old alow could make anyone's blood (flesh) creep.

To mince matter : (not to speak straightforwardly) whenever it comes to taking action against terrorist outfits operating from Pakistan, it starts mincing matter.

From pillar to post : (from one place to another) If you neglect your study, you will have to wonder from pillar to post in search of livelihood.

On pins and needles:  (waiting anxiously) Until the family received information about the whereabouts of the boy who did not return from the school till late in the evening, it was on pins and needles.

Palmy days:  (the days of prosperity) In our palmy days we never think of or prepare for the rainy days.

Pros and cons: ( the different both negative and positive) aspects of Something, Before starting an endeavour, one should evaluate pros and cons.
nip in the bud : (to suppress at the initial stage) Before they flower, negative tendencies must be nipped in the bud.

To pay someone back in his own coin : (to treat someone exactly he treats you) Usually even a wrong-doer does not like to be paid back in his own coin.

To pay lip service :(to sympathise only in saying)Politicians try to win elections by paying lip service to the woes of people.

To play fast and loose : (to behave unfaithfully) One who plays fast and loose ends up loosing faith of people and without friends.

To play second fiddle to :(to play a subordinate role to someone)To promote the emerging talent managers may sometimes have to play second fiddle to them in decision making.

To pay through the nose : (to pay excessively for something)  I had to pay through the nose for this new  dress.

To hang fire : (to hesitate) Due to its wider repercussions, those who want to target corruption at high places usally hang fire.

To hold one's card close to one's chest : (not sharing secret) A selfish person holds his card close to his chest and wants to elicit information from others.

To hit below the belt : (to deal with something unlawfully) John is so possessive about his reputation that he does not hesitate in hitting below the belt just to win.

To hit the nail on the head : (to come to the right conclusion) Amartya Sen hit the nail on the head when he said that panacea to all ills lies in education.

To hold water :(to be valid or applicable) That character is the best jewel of man still holds water in this age of materialism.

Jaundiced eyes : (biased view) Jaundiced eyes spoil every chance of impartiality and justice.

To jump to a conclusion :  (to arrive at a hasty calculation without proper consideration) So far as the causes of terrorism is concerned we often jump to the conclusion. Problems are somewhere else too.

To keep at bay : (to keep in check)If rumours are suppressed atonce, communal tension can be kept at bay.

To keep body and soul together/To keep the wolf away from the door : (to manage life on bare minimum) Still there is a sizeable part of population that somehow keeps body and soul together.

To play truant :(to keep absent from school) In our school days we would love to play truant.

Quixotic project :(grand but impractical) Building a super computer was initially thought to be a quixotic project.

A red carpet welcome : (royal welcome) The red carpet welcome extended to the PM of the UK flattered him.

Rainy day :(difficult time) You should not spend all what you earn, you should save something for the rainy days.

Rule of thumb: (rough practical knowledge not practicable in the given condition) Generation gap occurs because the previous generation wishes to guide the present by the rule of thumb.

A broken reed : (unfaithful person)A broken reed loses the faith of his fellow-beings.

The rank and file : (the common man) It is the rank and file that makes a politician win election, not the elites.