Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

In which direction should the missing arrow point?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

What part of Turkey has the most feathers?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Replace the question mark with the correct number below.