Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

what does this below rebus represent identXQQQQQME

What's the best place to go shopping in the ocean?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

Find the missing number in the sequence below:

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?

What has no start, end, or centre?

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