What is the next number in the series?

15 29 56 108 208 ?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

There are a hundred statements.

First person says: At least one of the statements is false.

Second person says: At least two of the statements is false.

Third person says: At least three of the statements are false.

Fourth person says: At least four of the statements are false.

..

..

..

Hundredth person says: At least a hundred of the statements are false.

Analysing it, how many statements do you think are false and how many are true?

Find the number of squares in the below-given picture.

Which point will the car reach to go out?

I am the fastest animal but cannot climb the tree. What am I?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches