1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

There are three identical triplets sisters. Demi is the oldest of them all and she always speaks the truth. Diana is the next one who is a liar always. Drew, the youngest of them all speaks both truth and lies randomly.

On a rainy day, a family friend Victor visited them. Since there were starkly identical, he was not able to recognize them. Thus to clarify, he asked one question to each one of them.

He started with the one standing on the left and asked, 'Which sister is in the middle of you three?' She answered, 'That's Demi.'

Then, he asked the one standing in the middle, 'What is your name?' She answered, 'I am Drew.'

Finally, he asked the one standing on the right, 'Who is standing in the middle?' She answered, 'She is Diana.'

Victor was left baffled. He asked the questions three times and received different answers every time.

Can you tell who was who?

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

You need to move three matchsticks to form three squares. Can you do it?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Using eight eights and addition only, can you make 1000?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

I’m tall when I’m young, and I’m short when I’m old. 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.

What is the riddle which can be asked all day with a different correct answer each time.