There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

how come the second man dies?

If 21x = 79x, what is the value of x?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

Which is the rope you never skip with?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Why Wine Glass Stem is so long?