Can you calculate the probability of getting a sum of six when a dice is thrown twice?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

What is more useful when it is broken?

10+10 and 11+11 can give you the same answer.

Explain how?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

One day, all the courtiers from Akbar's court were gathered in the assembly hall when one of them told the Emperor that all his valuables had been stolen by a thief the previous night.
This shocked the Emperor to his core as the place where that courter stayed was the most secured in the kingdom. The Emperor thought that it is not at all possible for an outsider to enter into the courtier's house and steal the valuables. Only another courtier could commit this crime. He quickly called Birbal to identify the thief.
Birbal thought for a while and successfully solved the mystery by identifying the thief in just one statement.
What did Birbal say?

Find the number of squares in the below picture

Replace the question mark with the number below given a simple math problem.