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

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Can you find out the remainder when 3^300 is divided by 5?