How many triangles are there on the puzzle below?

Find out the number of circles in the given picture having Illusion

What can you see in the middle of March and April that you can never see in any other month?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

A hen, a dog, and a cat are stolen. Three suspects are arrested named Robin, Steve, and Tim. The police are sure that all of them stole one of the animals but they don't know who stole which animal.

Sherlock Holmes is appointed to identify and is provided with the following statements from the investigation.

Robin - Tim stole the hen
Steve - Tim stole the dog
Tim - Both Robin and Steve are lying. I neither stole a hen nor a dog.

Sherlock is somehow able to deduce that the man who stole the cat is telling a lie and the man who stole the hen is telling truth.

Can you help him find out who stole which animal?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

How do you go from 98 to 720 using just one letter?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

I’m tall when I’m young, and I’m short when I’m old. What am I?