An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

What is the centre of gravity?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

If six children and two dogs were under an umbrella, how come none of them got wet?

Replace the question mark with the number below given a simple math problem.

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?

Can you move 2 matchsticks to form four equal sized squares.