Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

Find the next number in the series below.

6 18 270 72090 ?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

How far can you walk into the woods?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

What is the longest word in the dictionary?

How can you take 2 from 5 and leave 4?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'