Which part of London exists in France as well ?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Can you count the number of children in the picture below

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

Find the next number in the series below

21 32 54 87 131 ?

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

A farmer went to a market and bought a wolf, a goat, and a cabbage. On his way home, the farmer came to the bank of a river and rented a boat. But crossing the river by boat, the farmer could carry only himself and a single one of his purchases: the wolf, the goat, or the cabbage. If left unattended together, the wolf would eat the goat, or the goat would eat the cabbage. The farmer’s challenge was to carry himself and his purchases to the far bank of the river, leaving each purchase intact. How did he do it?

I have an eye but still cannot see.

Who am I?