What has to be broken before you can use it?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

One night, a woman receives a call from the police. They tell her that her husband was murdered and that she should come to the crime scene as soon as possible. The woman drops the phone, shocked, and drives 20 minutes to the crime scene. As soon as she reaches the crime scene, the police arrest her and she is convicted of murder. How do the police know she committed the crime?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

Can you count the number of triangles in the given picture?

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?