A man has a certain number of small boxes to pack into parcels. If he packs 3, 4, 5 or 6 in a parcel, he is left with one; if he packs 7 in a parcel, none is left over. What is the number of boxes he may have to pack?

If the number 517*324 is completely divisible by 3, then the smallest whole number in the place of * will be:

The first pair of numbers bear a certain relationship. The same relationship is required to be found in the other pair, Find that missing number : 35 : 6 : : 120 :?

If three times the greater of two numbers is divided by the smaller number, the quotient will be 6 and the remainder will be 6. If five times the smaller number is divided by the greater number, the…

The value of a 2-digit number is 5 times the sum of the digits. What is the product of the digits ?

A zoo has some lions and parrots. The keeper counted 15 heads and 50 legs. Number of lions is