The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

A rain drop fell from one leaf to another leaf and lost 1/4th of its volume. It then fell to another leaf and lost 1/5th of the volume. It again fell on another leaf and lost 1/5th of the volume.



This process kept repeating till it fell on the last leaf losing 1/75th of its volume.



Can you calculate the total percentage of loss from the initial volume when the drop has fallen to the last leaf accurate up to two decimal places?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

What's a single-digit number with no value?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

Joseph buys three kinds of chocolates for 100 rupees. The first one is priced at 5 rupees, second one at 3 rupees and third one at 0.5 rupees.

If he bought 100 chocolates in total, how many pieces do you think he bought each chocolate?

What is the largest number you can write with just 3 digits?