How many of the following numbers are divisible by 132 ?

264, 396, 462, 792, 968, 2178, 5184, 6336

The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number ?

72519 x 9999 = ?

Which one of the following numbers is exactly divisible by 11?

(753 x 753 + 247 x 247 - 753 x 247) / (753 x 753 x 753 + 247 x 247 x 247) =?

(?) + 3699 + 1985 - 2047 = 31111

107 x 107 + 93 x 93 = ?

Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?

What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?

4.036 divided by 0.04 gives

What decimal of an hour is a second ?