What is difulculty?

What is the period of y equals sin x? What is 3.14 x 32? Two crores is equal to how many millions? 2a -3 plus 4b - 2a -b -3 plus 5? What are the advantages and disadvantages of servlet? What is the formula for the weight of a ms pipe? 10x plus 20 equals? What is the connotation of thick? What is the absolute value of -6? What is the difference between non negative integer and positive integer? What is the definition of cadence? Simplify the expression 3xy plus 5xy by combining as many terms as possible? How many 8 x 4 bricks to cover an area of 14 x 14? How is FUTA calculated? Which of these sentences is correctly written? Are there any free mortgage calculators? How many stamps are needed to send a letter from California to Texas? What are the first billion digits of pi? What is integral tan3x sec2x? What is the answer to the equation x plus 1?