A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

Can you count the number of squares in the figure below?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

Solve the rebus riddle in the picture below.

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.