When we see 2 but call 10?

Can you name four days which start with the letter 'T'?

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

Complete the table series riddle by finding the number that can replace "??".

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

Can you divide the below-given shape into four equal and identical pieces?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?