Prove that the below maths equation is true.

8 + 8 = 91

What do you see in the image below

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

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

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?