There is something which is always coming but never arrives?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

What four weights can be used to balance from 1 to 30 pounds?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

What does man love more than life, hate more than death or mortal strife; That which contented men desire; the poor have, the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Move three sticks of the spiral below to form a square.

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

Why do you find that most of the buildings are deprived of the 13th floor?

Spot the cat in the picture below