Can you start the fire using two pieces of wood?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

There are forty elephants and they have forty-fore heads. How can this be possible?

Solve this riddle by finding the odd one out from the rest.

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

10+10 and 11+11 can give you the same answer.

Explain how?

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?