How many triangles are there on the puzzle below?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Our product and our sum always give the same answer. Who are we?

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

We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

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

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

John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

You need to arrange three 7 and mathematical symbols to form number 1?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.