Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

Can you make four (4) nines (9) equal 100?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

Can you name some countries which do not have the alphabet 'A' in them?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Can you find the thief by just looking at the picture below?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Count the squares in the matchstick puzzle below?