The below is a number puzzle. It should be read left to right, top to bottom.
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
? ? ? ? ? ?
? ? ? ? ? ? ? ?

Rob is taller than Edwin, Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

Edwin is taller than Jurgen
Jurgen is taller than Edwin
It cannot be determined if Jurgen or Edwin is tallest.

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

Here are three answers:
1. Answer A
2. Answer A or B
3. Answer B or C

There is only one correct statement.Identify It ?

A man is sitting in a pub feeling rather poor. He sees the man next to him pull a wad of £50 notes out of his wallet.
He turns to the rich man and says to him,
‘I have an amazing talent; I know almost every song that has ever existed.’
The rich man laughs.
The poor man says, ‘I am willing to bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it.’
The rich man laughs again and says, ‘OK, how about my daughter’s name, Joanna Armstrong-Miller?’
The rich man goes home poor. The poor man goes home rich.

What song did he sing?