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

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Why did Buffon take the goal with him after every Juventus match?

Can you find the hidden animal in the picture below?

An explorer goes on an exposition in the jungle. He sets up camp in the middle of the jungle. The next morning he sees something with a head and a tail, but he is not afraid. What did he see in his bag?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?