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

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

Can you find the six hidden animals in the picture below?

If 21x = 79x, what is the value of x?

If a wheel has 54 spokes, how many spaces are there between the spokes?

What word is represented by this rebus?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

What type of tree can I carry in my hand?

What always comes into a house through the keyhole?