How many sides does a circle have?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

There are five men, let's say Tarun Harish Lavesh, Manoj, and Manish. All of them have a dot mark on their forehead. They can't see the dots on their forehead but can see the ones on others. The owner of WHITE Dot is an honest person and will never lie, while the owner of BLACK Dot always tells the lie.

This is the statement from Tarun Harish Lavesh and Manish:
Tarun: 'I see 3 whites and 1 black'
Harish: 'I see 4 black'
Lavesh: 'I see 3 black and 1 white'
Manish: 'I see 4 white'

What colour is the dot on each of Tarun Harish Lavesh, Manoj, and Manish's forehead?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

Spot 5 differences in two Christmas tree below:

What is Luis Suarez's (Soccer Player) favorite tea?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?