What is the word or phrase?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

Make a sentence consisting of three words that have the whole alphabet.

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Be active and find the killer in the picture Riddle below.

Rearrange the letters in "new door" to make one word.

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?