Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

Complete the table series riddle by finding the number that can replace "??".

I look at you, you look at me, I raise my right, you raise your left. What am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Count the number of triangles in the given picture.

81 x 9 = 801. What must you do to make the this equation true?

There are forty elephants and they have forty-fore heads. How can this be possible?

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

What kind of storm is always in a rush?