The centre of the third figure is empty. What digit should fit inside?

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

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

What do you answer even though it never asks you questions?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

How many letters are in the alphabet?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?