Tree Problem

Replace the question mark with the correct number below.

Tree Problem




Similar Riddles

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Asked by Neha on 24 Sep 2025


A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

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Identify The phrase in the picture.

Face the Word

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I look at you, you look at me I raise my right, you raise your left. What am I?

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My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Asked by Neha on 01 Sep 2023

Which tank will fill first?

Fill The Tank

Asked by Neha on 13 Jul 2021


There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

Asked by Neha on 21 May 2024

Through your logical capabilities, can you make 7 an even?

Asked by Neha on 04 Mar 2026

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

Asked by Neha on 14 May 2023


You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Fill The Grid

Asked by Neha on 22 Sep 2025

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Amazing Facts

Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.