I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

In the image given, you can find several triangles. Can you count them all?

Find the next number in the series below

21 32 54 87 131 ?

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?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

What came first, the chicken or the egg?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?

What jumps when it walks and sits when it stands?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?