Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

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?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

How many triangles are there on the puzzle below?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.