A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

Find the 8 in the below-given Image.

People put me on the table and cut me but do not eat me. What am I?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

What am I?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

No matter how little or how much you use me, you change me every month. What am I?