You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Spot 5 differences in two Christmas tree below:

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

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

In a kingdom, King George did not allow any citizen to visit the world outside. Also, only a person with proper paperwork was allowed to enter or he was sent back. A wooden bridge was what connected the kingdom to the world. The king had appointed a sharpshooter who would check the every five minutes on the bridge to check. After checking, he would go back to his hut and return exactly after five minutes again. The bridge took 9 minutes to cross.

A merchant was able to escape the kingdom without harming the shooter. How?

You can hear me, but you can't touch or see me.

What am I?