Verbal Reasoning - Mental Ability Questions

Pradeep correctly remembers that his mother's is before twenty third February but after ninteenth February, whereas his brother correctly remembers that their mother's birthday is not on or after twentysecond February. On which day in February is definitely their mother's birthday ?

What should come next in the following letter series based on English alphabet ?
CEA JLH QSO ?

How many number of weights do you need to weight 31 kg of Rice if you have one kg of weight stone ?

Choose the correct alternative that will continue the same pattern and replace 'x' in series 1,2,5,10,25,50,x,250

The product of two successive numbers is 9506.Which is the smaller of the two numbers?

Find the wrong number from the following series ?
37   47    52    67    87    112    142

Car is to garage as aeroplane is to

In a beach, Renu is running with her children and there she met Vishal and Laxmi. Vishal introduces Ravi to those children as " This person is the daughter of your mother's father's mother and is my sister." How is Vishal and Laxmi related to Renu ?