Can you start the fire using two pieces of wood?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Three men in a cafe order a meal the total cost of which is $15. They each contribute $5. The waiter takes the money to the chef who recognises the three as friends and asks the waiter to return $5 to the men.

The waiter is not only poor at mathematics but dishonest and instead of going to the trouble of splitting the $5 between the three he simply gives them $1 each and pockets the remaining $2 for himself.

Now, each of the men effectively paid $4, the total paid is therefore $12. Add the $2 in the waiters pocket and this comes to $14. Where has the other $1 gone from the original $15?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

A blonde put eyeliner on her head. Why?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

If your uncle’s sister is not your aunt, what relation is she to you?

Be active and find the killer in the picture Riddle below.

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Can you tell a 3D object that has just two surfaces?