What is the riddle which can be asked all day with a different correct answer each time.

I am lying and I always lie. Tell me whether I am lying or telling the truth.

The answer I give is yes, but what I mean is no. What was the question?

What 5-letter word typed in all capital letters can be read the same upside down?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

How many sides does a circle have?

If you can spot the hidden clock quickly, you are often those with high IQs and exceptionally keen observation skills. You excel in noticing the finest details that others might miss and can process visual information at lightning speed.

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

Can you count the number of triangles inside a triangle?