Find the hidden tiger in the given optical illusion ?

A man plots the murder of his wife. His plan is full proof. Nobody saw them leaving their house. He stabbed her with a knife while driving. She died on the spot. He threw her body in a valley. He threw the knife carefully wiping his finger prints on a random garbage bin. Then he went back to his home and no one was watching him this time as well.

After an hour, he was called by the local police department who informed him that his wife was murdered. They asked him to reach the scene of crime immediately. But as soon as he arrived at the crime scene, he was arrested by them.

How did the police know that he himself is the murderer?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

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

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

If six children and two dogs were under an umbrella, how come none of them got wet?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

What is harder to catch the faster you run?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?