What is the next number in the series?

15 29 56 108 208 ?

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?

What do you get if you add 2 to 100 four times?

Where do you go to learn how to make ice cream?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

How many words can a pen with half refill write?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

I look at you, you look at me I raise my right, you raise your left. What am I?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?