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?

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

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

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

A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Find the Goldfish below the given Image.

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?