If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

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?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

What has 13 hearts but no other organs?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?