I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

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

Prove that the below maths equation is true.

8 + 8 = 91

You bought me for dinner but never eat me. What am I?