Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

Alex is stranded on an island covered in forest.
One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Alex survive the fire? (There are no buckets or any other means to put out the fire)

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

You can hear me, but you can't touch or see me.

What am I?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?