I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

How many times do a clock's hands overlap in a day ?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

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

If it took eight men ten hours to build a wall, how long would it take four men to build it?