How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

What is the next number in this matchsticks series riddle?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

How many sides does a circle have?

How many triangles can you find in this given picture?