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

Prove that the below maths equation is true.

8 + 8 = 91

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Can you solve the below geography rebus by decoding the below rebus ?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

How many words can a pen with half refill write?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Can you move 2 matchsticks to form four equal sized squares.