In these questions read each sentence to find out whether there is any error in it. If there is no error, the answer is (D).

He only wrote (A) / on one side of (B) / the paper. (C) / No error (D). 

Running 4/3 of his usual speed, a person improves his timing by 10 minutes. Find his usual time to cover the given distance.

Which statement about Prime Minister's Office (PMO) is untrue?

What will come in place of question mark ( ? ) in the following series?
656, 352, 200, 124, 86, ? 

Name the Indian hockey player who will be honored with Mohan Bagan Ratan?

B is father of Q. B has only two children. Q is the brother of R. R is the daughter of P. A is the granddaughter of P. S is the father of A. How is S related to R?

Select the most appropriate option to fill in the blank.
We must start now ______ it will be too late.