A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

What does this rebus mean?

O
N
C
E
TIME

What goes up but never comes down?

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

Buy me, smell me or deliver me, I do not change.

Who am I?

A man was convicted of a minor offence in Akbar court. Akbar decided to give him a chance. He asked him to give a statement. If the statement is true, he will be killed by lions and if it is false, he will be killed by trampling of wild elephants.

The convicted person requested help from Birbal and since the crime was not a big one, Birbal decided to help him. Whatever Birbal suggested impressed Kabir and he let the convicted person go.

What did Birbal suggest to the person?

A pet show was happening in my locality. I went down along with my kids. In that show, I noticed that all except two of the entries were cats. All except two were dogs and all except two were Monkeys.

Can you find out how many of each animals were present in that pet show?

Next Number in the Series,

5, 16, 49, 104, ?

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?

Move four matchsticks to the below square to form three squares?