It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

Which English verb becomes past tense just by rearranging the letters?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

What do you think with the below Picture ?

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?

Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

What can go up a chimney down, but can’t go down a chimney up?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

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