Jack and Tree Height

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?




Similar Riddles

If six children and two dogs were under an umbrella, how come none of them got wet?

Asked by Neha on 07 Mar 2022


A gardener planted the Lemon trees in a mathematical ordered way (i.e. he planted a tree in rows).
He created a total of 19 rows of trees.

Note: There should be more than 2 trees to count as a row.

What is the minimum number of trees required by the gardener to have 19 rows of trees?

Asked by Neha on 29 Apr 2026

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

Asked by Neha on 24 Feb 2021


Can you find the dog hidden in a group of pandas?

Dog amongst Pandas

Asked by Neha on 16 Feb 2025

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

Asked by Neha on 13 Apr 2026

Why despite killing dozens of people Charley and Wilma were not punished?

Asked by Neha on 21 May 2026


In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Asked by Neha on 06 Jul 2025

Find the missing number in the sequence below:

Find the missing number

Asked by Neha on 03 Sep 2021

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

Asked by Neha on 20 Feb 2024


Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Asked by Neha on 26 May 2023

Hot Articles

Amazing Facts

Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.