I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Can you make four (4) nines (9) equal 100?

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

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

There is a place where if I stand up straight, I will still be considered sideways.

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?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

What is harder to catch the faster you run?