Replace the question mark with the correct number in the below-given picture?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

What do you answer even though it never asks you questions?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

The King of a distant land had heard that Birbal was one of the wisest men in the East and so desired to meet Birbal. He sent Birbal an invitation to visit his country.

In due course, Birbal arrived in the distant kingdom. When he entered the palace he was flabbergasted to find not one but six kings seated there. All looked alike. All were dressed in kingly robes. Who was the real king?

The very next moment he got his answer. Confidently, he approached the king and bowed to him.

How did Birbal know who was the real king?

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?

Can you solve the photo plexer logic ?

The cream is heavier than Milk. True or False?

I travel all around the world but always stay in the corner. What am I?