Can you solve below mathematical equation?

2^1234 - 2^1233

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

A fresh card pile is taken out of a box (the pile has 54 cards including 2 jokers). One joker is taken out and then the cards are shuffled for a good amount of times. After shuffling, two piles are made by dividing that one pile.



What is the possibility that one of the piles will have a card sequence from A to K in order?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

I know a nine-letter word having only one vowel.
Do you ?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?