How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

My location can be determined by the below rebus.
So where am i ?

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?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?