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?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

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

Using Only Five 5's and any mathematical operator make sum as 37

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Replace the question mark with the correct number in below Picture:

Rectify the following equality 101 - 102 = 1 by moving just one digit.

What does this mathematical rebus means ?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.