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

How Come ??

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?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

Complete the table series riddle by finding the number that can replace "??".

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

There are 3 apples in the basket and you take away 2. How many apples do you have now?