Before Mount Everest was discovered, what was the highest mountain in the world?

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?

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I have no life, but I can die. What am I?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

What has many keys but can’t open a single lock?

How many letters are in the alphabet?