Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

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?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

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

What has one eye, but can’t see?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

You can hear me, but you can't touch or see me.

What am I?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

What word begins and ends with an E, but has only one letter?