Arun was born on 4th December 1990. His cousin Varun was born on 4th November 1990. The birthday of their cousin Kiran was Tuesday, 25th December of that year. In which day Varun was born?

Curd is related to Milk in the same way as Brick is related to _____

What is the number in the place of '?' in the sequence 3, 28, 128, 353, 753, '?'

Age of father is 4 times the age of his son. After 6 years ages of father and son will be in the ratio 5:2. What is the present age of the son?

The sum of the areas of two squares is 61 square units and their difference is 11 aquare units. What is the length of a side of the smaller square?

If x/3=y/5=z/7 then z2-x2+y2/2y2 = ...........