A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

How can a man go eight days without sleep?

What has 88 keys?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

What can go through glass without breaking it?

I have branches, but no fruit, trunk or leaves. What am I?

Find the next number in the series below

21 32 54 87 131 ?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

Solve below rebus puzzle?