The Little ant seems to be always confused. Do you know why?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Can you find the thief by just looking at the picture below?

When is the top of a mountain similar to a savings account?

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

I have thought of a number that is made up by using all the ten digits just once. Here are a few clues for you to guess my number:

First digits is divisible by 1.
First two digits are divisible by 2.
First three digits are divisible by 3.
First four digits are divisible by 4.
First five digits are divisible by 5.
First six digits are divisible by 6.
First seven digits are divisible by 7.
First eight digits are divisible by 8.
First nine digits are divisible by 9.
The number is divisible by 10.

Can you find out the number ?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?