Number on the Bottom

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?




Similar Riddles

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

Asked by Neha on 30 Dec 2020


What number should come in place of the question mark below?

Logical Number in Center

Asked by Neha on 27 Aug 2024

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

Asked by Neha on 14 Jul 2021


You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

Asked by Neha on 28 Feb 2024

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Asked by Neha on 23 Oct 2021

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Asked by Neha on 17 May 2021


Can it be possible to build a house that has all its four walls facing towards the South?

Asked by Neha on 20 May 2024

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.

Asked by Neha on 01 Nov 2023

By what process could you make a 'Tea-Table' into food?

Asked by Neha on 16 Aug 2023


What do you see in the image below

Typical Image Puzzle

Asked by Neha on 17 Sep 2025

Hot Articles

Amazing Facts

Crossword puzzles

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