1 power 3 = 0+1 = 1 2 power 3 = 8 + 2 = 10 3 power 3 = 27 + 3 = 30 4 power 3 = 64 + 4 = 68 5 power 3 = 125 + 5 = 125

So the missing number is 68

If

4+5+4+5=81 5+6+5+6=16 6+7+6+7=64 1+2+1+?=16

What is the missing number?

Find a number which is Divided by 2 the balance should be 1, div by 3 bal 2, div by 4 bal 3, div by 5 bal 4, div by 6 bal 5, div by 7 bal 0, div by 8 bal 7.