It belongs to you, but other people use it more than you do. What is it?

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

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

A father's child, a mother's child, yet no one's son.

Who am I?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Can you spot the man between the coffee bean in the picture below ?