In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

What breaks yet never falls, and what falls yet never breaks?

How can you make number one disappear by adding something to it?

Keyboard words are not in alphabetical order, Why?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

what's the probability of getting a king or a queen from a pack of 52 cards?

How is the moon similar to a dollar?

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?