Kentertainment, Term 1 Week 8 (from KenKen.com)

There is a three digit number. The second digit is four times as big as the third digit, while the first digit is three less than the second digit. What is the number? You must prove your answer, please!

Kentertainment, Term 1, Week 7 (from KenKen.com)

A, B and C all told each other about the age and gender of X. All three of them told at least one truth. A: X is male and age 20 B: X is male and age 22 C: X is female and age 18 What is the age and gender of X?

Kentertainment, Term 1, Week 7 (from KenKen.com)

A ship anchored in a port has a ladder, which hangs over the side of the boat. The length of the ladder is 200cm, the distance between each rung is 20 cm and the bottom rung touches the water. The tide rises at a rate of 10cm per hour. When will the water reach the fifth rung?

Kentertainment Term 1, Week 6 (from KenKen.com)

A weighs half as much as B, and C weighs three times as much as A. Together, they weigh 720 kilograms. How much does each letter weigh?