What two things can you never eat for breakfast?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Queen Elizabeth organised a royal party.

To Avoid uninvited guest royal family set a password.
Jack (an uninvited person) plan to enter the party. He stand nearby the door.

First guest comes, the security person said 'twelve' and guest replied with six.
Second guest comes , the security person said 'six' and guest replied with 'three'.

Jack thought is enough and he walked to the entry point. The security person said 'eight' , Jack replied smilingly 'four'.
He was immediately thrown out of the party. why ?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

Solve below popular number sequence
314 159 265 358 979 323 846 ?

If Rajina's daughter is my daughter's mom, who am I to Rajina?