I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Find the missing number in the sequence below:

Can you guess the name of the month by looking the below rebus ?

You see me once in June, twice in November, and not at all in May. What am I?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

You need to arrange three 7 and mathematical symbols to form number 1?

Do You See It?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

A man escapes from jail using help from his girlfriend. The investigators suspect four girls of being the man's girlfriend.

Out of those four girls, one is his girlfriend who is lying. Two of the girls are completely innocent and are speaking the truth. One of the girls is the man's sister who is helping the girlfriend lie. Following are the statements from all four of them:

Ariana: "Myrna is his girlfriend."
Jane: "Angelina is lying."
Angelina: "Ariana is lying."
Myrna: "Jane is not his sister."

Can you find out who is the man's sister among them?