2, 3, 5, 9, 17, _ What is the next number in the sequence?

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

Using Only Five 5's and any mathematical operator make sum as 37

Move three sticks of the spiral below to form a square.

What type of tree can I carry in my hand?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

What has no start, end, or centre?

Solve this riddle by finding the odd one out from the rest.