By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Can you start the fire using two pieces of wood?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

What number when divided in half becomes zero?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?

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

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?