What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

What number should come in place of the question mark below?

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Can it be possible to build a house that has all its four walls facing towards the South?

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.

By what process could you make a 'Tea-Table' into food?

What do you see in the image below