$${{\mathtt{2}}}^{{\mathtt{99}}} = {\mathtt{633\,825\,300\,114\,114\,700\,748\,351\,602\,688}}$$
Maths is definitely cool.
It won't work...
Nice, i had a similar method like CPhill, but i have no idea what LaTeX is.
Answer=21
(I'll need harder brain teasers!)
$${\mathtt{3}}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}} = {\mathtt{7}}$$
You just type it into the calculator.
1/2
$${\frac{{\mathtt{1}}}{{\mathtt{2}}}} = {\mathtt{0.5}}$$
4*5=20
$${\mathtt{4}}{\mathtt{\,\times\,}}{\mathtt{5}} = {\mathtt{20}}$$
The answer is 5.196
9+10=19, but for silly people it's 21
