El acertijo de las 23 cabezas


En el excelente blog El espejo Ludico , proponen este curioso problema :

En una animada tertulia, uno de los amigos del Conde, exclamó sonriente: “Tengo un animal en mi propiedad que tiene 22 cabezas y estoy dispuesto a apostarme cualquier cantidad con ustedes a lo que digo es rigurosamente cierto”.

El Conde Numerales, sin levantar la mirada de su café, replicó: “Querido amigo, o es usted un descuidado con sus animales o está equivocado”.

El interpelado dudó un momento y dijo: “Perdón, es cierto, me refería a 23 cabezas”.

¿Era posible que tuviera un animal semejante?

Hasta aqui el acertijo , como ya he comentado allí , no tengo ni idea y mis propuestas creo que van mal encaminadas.
A ver si alguien da con la solucion.

Esto me ha dado la idea de postear , una vez a la semana, un acertijo que considere interesante (hay muchos , claro , no podré poner todos) de blogs que leo habitualmente y publican acertijos.

Actualizacion: Solucion en comentarios

Acertijo geometrico.


Bueno , este es muy facilito…

1. Divide la figura 1 (morado) en 2 partes iguales

2. Divide la figura 2 (verde) en 3 partes iguales

3. Divide la figura 3 (amarillo) en 4 partes iguales

4. Divide la figura 4 ( rosa) en 5 partes iguales

Actualizacion: Solucion en comentarios por Quatermain

Acertijo optico. otro ejercicio para tus ojos


Hace tiempo puse el post Ejercicio para tus ojos en el que habia que encontrar un caracter distinto entre varios similares. Fue uno de los post mas visitados , y como estamos en vacaciones y bajo el influjo de las reposiciones televisivas , os pongo algunas pruebas mas , distintas , claro está , una cosas es una reposicion y otra copiar el post.

Encuentra la Z ( sin esa virgulilla encima , claro):

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Encuentra la i

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En los siguientes casos , no te digo la que debes encontrar , tienes que hacerlo por ti mismo 😉
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Y este ya para los que no tengan realmente nada que hacer….

Encuentra la q

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Para los graciosos…
Encuentra el punto final.

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Las hormigas andarinas

Colocamos 1000 hormigas andando sobre un trozo de madera de 1 metro de largo ( a efectos del problema , consideramos solo la longitud como medida importante , y consideramos todo sobre el mismo plano)

Cada hormiga anda a una velocidad constante de 1 m/s

Las hormigas son colocadas todas ala vez y en posiciones al azar en la madera , tambien aleatoriamente , algunas empiezan a andar hacia la derecha y otras hacia la izquierda.

Cuando 2 hormigas se encuentran, cambian su sentido del movimiento:

Cuando una hormiga alcanza el final del palo , caen fuera. Finalmente todas ellas caeran.

¿Cual es el mayor tiempo que aguantará la hormiga que caiga la ultima?

Este acertijo solo requiere imaginacion, ningun conocimiento matematico.Un niño de 7 años podria resolverlo…lo que no quiere decir que sea facil..;)

Actualizacion: Solucion en comentarios , por Lobo

¿Podeis ver algo aquí?


Esta imagen es muy conocida , pero , si no la has visto antes , aparte de manchas negras , ¿que puedes identificar?

Si no la viste antes , prueba tambien esta

Otra tambien muy interesante está aqui

Actualizacion: Os dejo destacada la imagen aquí ; Eduardo Campos e Isa dejan la respuesta en comentarios