On which date World Braille Day is celebrated

The highest number which divides the product of any three consecutive even natural number is

The largest four digit number which when divided by 4, 7 and 13 leaves a remainder 3 in each case is

Find the difference between Simple Interest and Compound Interest for a sum of ₹ 8,000 lent at 10% per annum in 2 years.

Select the number from the given options which will come in place of the question mark (?) in the following series. 

6, 12, 14, 28, 30, 60, ?

A can do a piece of work in 20 days and B can do it in 30 days. How long will they take to do the work together?

Find the missing number

2, 4, 12, 48, 240, .....

A machine bought at Rs. 50,000 falls in its value by 8% of its value every year. Find the value of the machine after 2 years.

Find the G.C.D. of the following:

35x⁵ y³ z⁴, 49x² yz³, 14xy² z²