121, 100, 81, 64, ...

23B_6_FG_5D_8_HI

In a 200 metres race A beats B by 35 m or 7 seconds. A's time over the course is:

What is the sum of the digits in the greatest number N that will divide 1305, 4665, and 6905, leaving the same remainder in each case?

Find the least number of pebbles in the heaps when the pebbles, when made into groups of 32, 40, and 72, leave remainders of 10, 18, and 50 respectively.

 A, B and C invested Rs.6300, Rs.4200 and Rs.10500 respectively, in a partnership business. Find the share of A in profit of Rs.12100 after a year? 

 In a race, average speed of total 75 bikes is 35km/hr. The average speed of red bikes is 55 km/hr. If average speed of green bikes is 30km/hr, then how many green bikes are there?
 

Amish can finish a work in 8 days. Bajaj joined Amish after 3 days, and the remaining work got finished in the next 1 day. If Bajaj works alone, how many days will he take to finish the work?

If water is called blue, blue is called red, red is called white, white is called sky, sky is called rain, rain is called green, and green is called air, what is the color of milk?

A clock that gains uniformly is 2 minutes low at noon on Monday and is 4 minutes 48 seconds fast at 2 p.m. on the following Monday. When was the clock correct?